Answer:
b
Explanation:
because its waterproof
Answer:
B.It must hqve A plastic liner
An area where deforestation has occurred is more vulnerable to
A. water pollution.
B. transpiration.
C. snowstorms.
D. seismic activity.
Answer:
A. water pollution
Explanation:
B. It can't be transpiration because that is how plants 'breath'
C That is dependant on climate
D. That is dependant on the area, not the forests
A. It must be A, because dirt will get washed into streams and other waterways because of erosion due to lack of plants, and it is the only logical answer.
If an object is placed an electric field how will it move
Answer:
Explanation:
Electric field is a vector quantity whose direction is defined as the direction that a positive test charge would be pushed when placed in the field. Thus, the electric field direction about a positive source charge is always directed away from the positive source.
a factory owner might decide to manufacture shirts in parkistan instead of the United States because ?
Answer:
A factory owner might decide to manufacture shirts in Pakistan instead of the United States because it is less expensive to make shirts there.
Forensic light sources such as UV lamps and LEDs are routinely used for locating and identifying evidence in criminal investigations. Research online and list three crime scenarios where these light sources were used to identify evidence.
Answer:
to see blood or to see fingerprints or footprints
Explanation:
if this helps could you please give brainliest
If an object leaves Earth's gravitational field and floats in space, which one of the following will change?
A. The object's mass.
B. The object's weight.
C. Neither the mass nor the weight of the object will change.
D. Both the object's mass and weight.
Answer: B. The object's weight
Explanation:
Weight depends on gravity and is a measure of how much force gravity exerts on an object. Mass is the measure of how much matter is in an object and doesn't depend on gravity. In space, mass doesn't change but weight does.
How did the results prove the semiconservative model of DNA
replication? Explain.
Answer and Explanation:
Image result for How did the results prove the semiconservative model of DNA
The experiment done by Meselson and Stahl demonstrated that DNA replicated semi-conservatively, meaning that each strand in a DNA molecule serves as a template for synthesis of a new, complementary strand. Although Meselson and Stahl did their experiments in the bacterium E.
City water management is analyzing water samples from the local river for water pollutants that could be toxic to humans if found in drinking water. Their collection data is below.
Samples
Location
Nitrates
Carbamates
1
Two miles downriver from drinking water uptake facility
12 mg/L
0.06 mg/L
2
One mile downriver from drinking water uptake facility
9 mg/L
2 mg/L
3
One mile upriver from drinking water uptake facility
8 mg/L
0.04 mg/L
4
Two miles upriver from drinking water uptake facility
10 mg/L
0.05 mg/L
Toxic levels reached when nitrates are greater or equal to 10 mg/L and/or carbamates are greater or equal to 0.04 mg/L.
Which sample location(s)have nitrates or carbamates at toxic levels that could be collected by the water uptake facility?
Samples 1, 2, 4
Samples 1 and 4
Samples 3 and 4
Only sample 4
Aquatic toxicity is found in the four sample sites. But since the water uptake facility collects water from upriver, the correct option is C. Samples 3 and 4.
What is aquatic toxicity?Aquatic toxicity is the property of a substance to causes harmful effects on aquatic or water-dependent organisms.
Aquatic toxicity can be either,
Sharp ⇒ nocive effects after a short exposition periodCronic ⇒ nocive effects after a long exposition periodAquatic toxicity depends on the substance type and its concentration in water.
--
According to the problem statement, toxic levels are reached when
nitrates are greater or equal to 10 mg/Land/or
carbamates are greater or equal to 0.04 mg/L.Sample 1 ⇒ Two miles downriver from drinking water uptake facility
Nitrate → 12 mg/L ⇒ > 10 mg/L ⇒ toxic Carbamate → 0.06 mg/L ⇒ > 0.04 mg/L ⇒ toxicSample 2 ⇒ One mile downriver from drinking water uptake facility
Nitrate → 9 mg/L ⇒ < 10 mg/L ⇒ not toxic Carbamate → 2 mg/L ⇒ > 0.04 mg/L ⇒ toxicSample 3 ⇒ One mile upriver from drinking water uptake facility
Nitrate → 8 mg/L ⇒ < 10 mg/L ⇒ not toxic Carbamate → 0.04 mg/L ⇒ = 0.04 mg/L ⇒ toxicSample 4 ⇒ Two miles upriver from drinking water uptake facility
Nitrate → 10 mg/L ⇒ = 10 mg/L ⇒ toxicCarbamate → 0.05 mg/L ⇒ > 0.04 mg/L ⇒ toxicThe four sample sites have toxic levels. Both of the substances concentrations or at least one of them reaches the toxic level at each site.
However, since water uptake facility can colect water from upriver, we only need to consider these sample sites.
The correct option is C. Samples 3 and 4.
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Answer:
b
Explanation:
A chemical property is determined by the following:
a. how it looks
c. how it feels
b. how it smells
d. none of the above
Answer:
Your answer is Option D. None of the above
Explaination:
Chemical Properties can be determined by Oxidation , Heat Combustion, How they react with other chemicals etc. While Physical properties include odor,taste,appearance,melting point,boiling point etc.
Which two natural resources will be most affected as people try to meet the growing demand for food?
Answer:
water and land
Explanation:
I assume this is an open-ended question, so you could make an argument for lots of things, but these are the two most important ones in my opinion. The amount of freshwater on Earth is pretty small, only about 2.5%, and most of that is locked in ice. As the demand for food grows, the demand for water for crops and livestock also grows. This is in addition to the increase in water that is needed for a growing population. Climate change increases this problem because of drought. The second most important resource that will be affected is land. If we need more food, we also need space to grow crops and raise livestock. The available space is also reduced because people need places to live and we need to be able to grow trees for wood to build houses and other buildings. I argue that land and water will be the most in-demand commodities as the population continues to increase.
Which organism are primary consumer in this food web?
Beavertail cactus
:-- they are primary consumer because they produce the material and store the energy at the bottom of the food chain. In other words, all animals are dependent, either directly or indirectly on the food materials stored in plants.
can anybody help me :)
Answer:
Option A is correct answer
Explanation:
Because the option A foot is of eagle & eagle easily catches their pray for e.g. snake while others use their foot to either walk or stand.
Answer:
A
Explanation:
The picture in Option A shows feet with talons, which will help in easier prey capture. This allows a predator to catch and hold the prey.
Which of the following is evidence that supports the Big Bang theory?
There are three correct answers
A. the redshift of most galaxies
B. the measurable expansion of the universe
C. the existence of cosmic background radiation
D.the lack of cosmic background radiation
name the five senses and their sense organs
Answer:
The Senses are:A Foucault pendulum provides evidence that
Earth
(1) orbits the Sun
(2) has a nearly spherical shape
(3) is tilted on an axis
(4) spins on an axis
Answer:
The answer is 4) spins on its axis if it is wrong then tell me tho oaky
During the first week of the menstrual cycle, an egg:
A. La ready to be fertilized
B. Matures in an ovary
C. Travels along a fallopian tube
D Attaches to the wall of the uterus
Which of the following subjects was NOT studied by boys in Ancient Athens? A. Math B. Athletics C. Science D. Reading
Answer:
C. Science
explanation:
Because they did not know want Science was
Which part of these is a part of feedback loop that results in a cooling effect on the earth
Answer:
The answer is b: part of a feedback loop that results in a cooling effect on Earth
Explanation:
More evaporation of water due to warmer temperatures from various sources such as seas and oceans and even melting of glaciers cause low and thick clouds to form. These thick low clouds later result in rain. In addition, the rain causes the earth’s temperature to cool down.
what will happen to the temperature in your decomposition layer if decomposition actually occurs in your ecocolumn?
A: Stay the same
B: Increase
C: Stay exactly 75 degrees Fahrenheit
D: Decrease significantly
Explanation:
the temperature of that layer will increase.
Please help me with this
Answer:
DNA: thymine, deoxyribose, large molecule, stay in the nucleus
RNA: single strand, uracil, leave the nucleus, small molecule
Explanation:
As for single strand, it's well known that DNA has two strands while RNA has one.
For the description that asks about thymine, you have to remember the nucleotide bases in DNA and RNA. Remember that DNA's bases are A, C, T, and G, while RNA has all the same bases except for T (which stands for thymine). In RNA, the thymine is replaced with uracil, usually abbreviated as U. That sorts out the descriptions that ask for thymine and uracil.
To figure out the one that asks for deoxyribose, remember that DNA has deoxyribose and RNA has ribose (hence why DNA is deoxyribonucleic acid while RNA is just ribonucleic acid.)
For the large molecule/small molecule ones and the questions that ask about the size of the molecule, remember that DNA is a way bigger molecule than RNA and that RNA is small enough to leave the nucleus, while DNA is much too valuable to the cell to be able to leave the nucleus.
Hope this helps!
Which procedure is involved in the development of the fetus?
formation of a zygote
the start of mentruation
formation of organ systems
muscle contractions in the uterus
Answer:
formation of organ systems
Explanation:
Actually, answer might be formation of organ systems b/c fetus are unborn offspring that have organ systems in place. Thus to develop a fetus the zygote has to multiply and eventually form organ systems (around 8 weeks from conception).
Which of the following is NOT a method of agricultural application?
Answer:
Agricultural biotechnology is a range of tools, including traditional breeding techniques, that alter living organisms, or parts of organisms, to make or modify products; improve plants or animals; or develop microorganisms for specific agricultural uses. Modern biotechnology today includes the tools of genetic engineering.
Explanation:
What abiotic factors affect the
oceans?
50 POINTS AND BRAINLY (25 points) IF RIGHT! DO ASAP PLEASE
Match the terms to the definition.
Question 1 options:
The spinning of a planet on its axis, causing day and night.
A group of objects that orbit a star.
A force of attraction that keeps planets orbiting the sun.
Jupiter, Saturn, Uranus, Neptune. Gas giants.
The orbit of a planet around the sun. On Earth, one year.
Huge clusters of stars, gas, and dust bound by the force of gravity.
Mercury, Venus, Earth, Mars. Terrestrial, rocky.
The idea of that the Earth and planets orbit the sun. A sun-centered view.
A rock that has entered Earth's atmosphere, leaving a streak of light in the night sky.
The theory the universe came forth from a single spot in an enormous explosion.
1.
Big Bang
2.
Doppler Effect
3.
Nebula
4.
Solar System
5.
Geocentric theory
6.
Heliocentric theory
7.
Gravity
8.
Galaxy
9.
Rotation
10.
Revolution
11.
Inner planets
12.
Outer planets
13.
Meteor
14.
Meteorite
15.
Meteoroid
Matching the terms to their definitions is as follows:
Terms Definitions1. Big Bang The theory the universe came forth from a single spot in an enormous explosion.
2. Solar System A group of objects that orbit a star.
3. Heliocentric theory The idea that the Earth and planets orbit the sun. A sun-centered view.
4. Gravity A force of attraction that keeps planets orbiting the sun.
5. Galaxy Huge clusters of stars, gas, and dust bound by the force of gravity.
6. Rotation The spinning of a planet on its axis, causing day and night.
7. Revolution The spinning of a planet on its axis, causing day and night.
8. Meteorite Inner planets
9. Meteoroid Outer planets
10. Meteor A rock that has entered Earth's atmosphere, leaving a streak of light in the night sky.
11. Gas giants Jupiter, Saturn, Uranus, Neptune.
12. Terrestrial, rocky Mercury, Venus, Earth, Mars.
Thus, the terms have been matched to their definitions as above.
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help with this question
Answer:
All of the options are correct.
Answer:
cross contamination is how bacteria can spread it occurs when juices from raw meats or germs from unclean objects touch cooked or ready to eat food.
now for your answer, it would be all of them because their all touching that raw meat and not getting sanitation
can I have brainly.. just asking..
Find out why mars would be a good choice for a human colonly. Also give some bad choices;
sight your sources '
helpp ill mark brainliest
Answer:
It has air but also lakes can be built to provide water to people living on it
Space travel has come a long way since Laika, but there are still many celestial bodies waiting to be explored. What do you think will be the biggest space mission of the twenty-first century? What challenges do you anticipate that the humans or space probes will experience on this journey? What specific accommodations or technological advancements will be needed to make the mission successful?
Answer:
NASA's Artemis program has a goal of landing humans on the moon in 2025 to begin building a base camp. This long-term human presence on the lunar surface will help NASA prepare for human space exploration missions of greater distance and duration, including an eventual crewed flight to Mars. Space can help us prepare the feutre Space exploration allows us to prove or disprove scientific theories developed on Earth. Studying the solar system, for example, has brought us insights into such phenomena as gravity, the magnetosphere, the atmosphere, fluid dynamics and the geological evolution of other planets. That has led to the development of various technologies that feed back into the economy and improve our lives on Earth. Without space programs, we wouldn't have GPS, accurate weather prediction, solar cells, or the ultraviolet filters in sunglasses and cameras.
Explanation:
There hope it helps Also you could've done a little bit of resheerch skimmed a cupple sights to get an idea on what to wright about then go from there its just an idea thoe
We have learned more about gravity, the magnetosphere, the atmosphere, fluid dynamics, and the geological evolution of other planets, for instance, through studying the solar system. This sparked the creation of numerous technologies that benefit the economy and enhance life on Earth.
What specific accommodations, technological space travel?In 2025, astronauts will be sent to the moon as part of NASA's Artemis mission to begin creating a base camp. This prolonged human presence on the moon's surface will help NASA get ready for longer-duration human space flight missions, such a possible crewed trip to Mars.
Additionally, you could have done some research by scanning a few websites to get an idea of what to write about before moving on from there.
Therefore, We wouldn't have GPS, precise weather forecasting, solar cells, or ultraviolet filters in eyeglasses and cameras without space missions. We can prepare the feutre by using space. We can use space travel to support or refute scientific hypotheses that were formed on Earth.
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Name the two glands that control the nervous system.
Answer:
pituitary and adrenal
When you speak naturally to children, you can teach them all of the following except
A. words and language in context.
B. behavior skills.
C. listening skills.
D. language and speaking skills.
Answer: B
Explanation: behaviour is learnt from action not speaking
The right response is C: listening abilities. Adults may teach toddlers a variety of crucial lessons that support language and speech development by speaking naturally to them. Setting a good example for children on how to use language in context is one of the most crucial things adults can do.
What is the deal with the samples ?This entails showing them samples of the language to use in various contexts and encouraging them to use the appropriate nouns and verbs. Children benefit from this because it enables them to appropriately grasp and apply the words they hear.
By giving children examples of appropriate behaviour in various contexts, adults may also assist youngsters in developing their social skills. This can involve things like greetings, apologies, or handling situations.disagreements.
Adults may teach kids how to respectfully communicate their thoughts and feelings. Finally, by engaging in conversation with kids and giving them feedback, adults may aid in their language and speaking development.
This might involve things like teaching kids to express themselves clearly and concisely, correcting grammatical errors, and explaining terms and phrases. However, normal conversation is not an effective way to teach listening skills.
The capacity to listen intently, comprehend what is being said, and respond properly are all parts of listening abilities. These abilities cannot be taught through casual conversation; instead, they require deliberate education and practise.
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Question 2 of 10
How did oxygen first enter Earth's atmosphere?
Answer: It wouild be biological proceses
What is the main difference between a nematode and a platyhelminth?
Answer:
The main difference between Platyhelminthes and Nematoda is that:
Explanation:
Platyhelminthes consists of flatworms with a thin, dorso-ventrally flattened body whereas Nematoda consists of a cylindrical body, which is tapered to fine ends at each end.
