Cold air is more ________________, so it sinks
a. expanded (Will Give Brainiest!)

b. hot
c. dense

d. volume

Answers

Answer 1

Answer:

Dense, it falls because it is more dense then warmer air

Explanation:


Related Questions

Why does the body regulate blood pH levels?

Answers

Answer:

If your blood pH levels aren't regulated then your blood will be like acid and potentially be fatal.

Explanation:

Your body tries to maintain homeostasis so regulating blood pH levels is vital.

Why is the sky blue? I know it’s a generic question but I honestly don’t know

Answers

Answer:

As sunlight passes through the atmosphere, particles in the air scatter blue light more efficiently than any other color in the light spectrum, creating a blue sky.

Explanation:

All are true about cell theory except
cells are structural and functional units of life
B All living things are composed of one or more cells
C most cells in humans are undifferentiated
D cells come from pre-existing cells​

Answers

D: Cells come from pre-existing cells.

This cannot be true as some cells die, meaning they cannot come from pre-existing cells.

In regards to B and C most are undiffereniated and any living thing has at least one cell in them.

why are seaweed and
kelp brown?

Answers

Answer:

Explanation:

El fucoxanthin es precisamente el pigmento que da a las algas marrones su color característico, así como el elemento que favorece el proceso de fotosíntesis. ... No obstante, el fucoxanthin no se encuentra en la misma proporción en las algas marinas verdes y rojas, también utilizadas en la gastronomía asiática

You can break seaweed down into three groups - red, brown, and green. This color has a direct effect on how much light seaweed absorbs via photosynthesis, which decides how close to the ocean’s surface it grows. Sea kelp is officially labelled as a brown seaweed, even though it can vary in color.

decribe what atoms are ( what are atoms )

Answers

Answer:

An atom is the smallest unit of ordinary matter that forms a chemical element. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. Atoms are extremely small, typically around 100 picometers across

Explanation:

Answer:

Atom:An atom is the smallest unit of ordinary matter that forms a chemical element. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. Atoms are extremely small, typically around 100 picometers across.

Explanation:

Hope this helped

What best describes brackish?
A. salt water with no fresh water
B. fresh water with no salt water
C. the water that comes directly from a river's source
D. a mix of fresh water and salt water

Answers

Answer:

It should be letter D hope it helps

Answer:

The answer is D because it is a mixture of both freshwater and salt water!!

Which of the following animals is raised on prairie land today?
sheep
owls
bison
deer

Answers

Answer:

The following animal that is raised on prairie land today I believe is the bison :)

The animal that is raised on prairie land today is sheep. The correct option is A.

What is prairie land?

Large expanses of grassland that are level or undulating are known as prairies.

These grasslands can be found in Minnesota in a variety of habitats, including shortgrass prairies perched high on the bluffs of the Minnesota River, enormous fields of big bluestem up to 8 feet tall, and sparsely vegetated sand dunes.

The Great Plains are made up of the Canadian provinces of Alberta, Manitoba, and Saskatchewan as well as the American states of North Dakota, South Dakota, Montana, Nebraska, Kansas, Oklahoma, Texas, Wyoming, Colorado, and New Mexico.

Sheep are currently the animal raised on prairie terrain. Millions of prairie dogs and thousands of bighorn sheep were nourished by vast, uninterrupted horizons of continuous grasslands.

Additionally plentiful were the birds, which included more than 3 billion passenger pigeons, various grouse species, and greater prairie chickens.

Thus, the correct option is A.

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1. What is an enzyme?

2. What is the name of the enzyme that breaks down:
a. Protein?
b. Carbohydrate?
c. Fat/oil?

Answers

enzymes are proteins. carbohydrate enzymes break down starch into sugar.




Identify the force used on your arm when you walk a dog on a leash and it tries to chase something

Friction
Gravity
Strong pull
Weak push

Answers

I believe it is strong pull because it is pulling u to go chase after whatever it’s chasing

The force used on your arm when you walk a dog on a leash and it tries to

chase something is known as Strong pull.

Strong pull is defined a physical force which is usually aggressive or

coercive and it involves the movement in a particular direction due to

different factors or reasons.

The Dog in the example has a leash on and applies a force in the direction of

the thing it wants to chase which is a perfect example of a strong pull.

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All living organisms maintain a relatively stable internal environment through a process known as homeostasis. The human body, for example, tries to maintain a temperature of about 37 degrees Celsius. When it gets cold outside, how does your body respond in order to maintain homeostasis?
A.
shivering
B.
sweating
C.
heavy breathing
D.
swelling

Answers

Answer:

shivering

Explanation:

the movement of your muscles creates friction between them, which produces heat, thus warming our bodies up.

Show the Work.
Calculate the first and second velocities of the car with two washers attached to the pulley, using the formulas

v1 = 0.25 m / t1, and

v2 = 0.25 m / (t2 – t1)

where t1 and t2 are the average times the car took to reach the 0.25 and the 0.50 meter marks. Record these velocities, to two decimal places, in Table E.

What is the first velocity of the car with two washers at the 0.25 meter mark?

m/s

What is the second velocity of the car with two washers at the 0.50 meter mark?

m/s

Answers

(1) The first velocity of the car with two washers at the 0.25 meter mark is 0.125 m/s.

(2) The second velocity of the car with two washers at the 0.5 meter mark is 0.25 m/s.

What is velocity?

Velocity is the rate of change of displacement with time. The velocity of the  cars depends on displacement and time of motion.

First velocity of the car at the 0.25 meter mark

The first velocity is calculated as follows;

v1 = 0.25 m / t1

let t₁ = 2 s

v₁ = 0.25/2

v₁ = 0.125 m/s

Second velocity of the car at the 0.5 meter mark

v2 = 0.25 m / (t2 – t1)

let t₂ = 3 s

v₂ = 0.25(3 - 2)

v₂ = 0.25 m/s

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Answer:

What is the first velocity of the car with one washer at the 0.25 meter mark?

1st  = 0.11 m/s

2nd = 0.13 m/s

3rd = 0.19 m/s

What is the second velocity of the car with one washer at the 0.50 meter mark?

1st = 0.28 m/s

2nd = 0.36 m/s

3rd = 0.45 m/s

Explanation:

trust

Why does lactic acid continue to rise in the blood after exercising ceases​

Answers

Answer:

During intense exercise, there may not be enough oxygen available to complete the process, so a substance called lactate is made. Your body can convert this lactate to energy without using oxygen. But this lactate or lactic acid can build up in your bloodstream faster than you can burn it off.

Explanation:

how do changes in a species population affect other organisms living in the same ecosystem?

Answers

Answer:

Explanation:

There are four main types of species interactions that occur between organisms in an ecosystem: Predation, parasitism and herbivory - In these interactions, one organism benefits while the other is negatively affected. * Competition - Both organisms are negatively affected in some way due to their interactions.

Which organelles are the sites of photosynthesis in plant cells?

Answers

Answer:

Chloroplasts

Explanation:

In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll. Chloroplasts are surrounded by a double membrane and contain a third inner membrane, called the thylakoid membrane, that forms long folds within the organelle.

An example of human systems that work together to provide nutrients for the cells and tissues is
A. digestive system and nervous system
B. circulatory system and nervous system
C. circulatory system and digestive sytem
D. nervous system and urinary system

Answers

Answer:

The answer is C

PLEASE ANSWER QUICKLY

Answers

Answer:

B

Explanation:

Which organelle is correctly paired with its function?
A) nucleus - provides carbohydrates for fermentation
B) Chloroplast - serves ae the site for photosynthesis
C) centriole - synthesizes digestive enzymes
D) lysosome - packages cellular products

Answers

Answer:

B) Chloroplast - serves ae the site for photosynthesis

The function of chloroplast is to synthesis food.

The organelle that is correctly paired with its function is the chloroplast, which serves as the site for photosynthesis and is present in Option B as the chloroplast is the site of food synthesis.

What is the significance of chloroplasts in plants?

Chloroplasts are cell organelles that are found in the cells of green plants, algae, and some other photosynthetic organisms and are the site of photosynthesis, which is the process by which plants convert light energy into chemical energy in the form of glucose, and it absorbs light energy, which is then used to convert carbon dioxide and water into glucose through a light reaction and the Calvin cycle, and the animals and plants get their food from it.

Hence, the organelle that is correctly paired with its function is the chloroplast, which serves as the site for photosynthesis and is present in Option B as the chloroplast is the site of food synthesis.

Learn more about the significance of chloroplasts in plants here.

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It is important to be careful when using nonrenewable resources because...
Flocabulary
PLEASE HELP

Answers

Answer

they are nonrenewable so that means once you use them they are gone forever or for a very, very, veryyy long time (like 100 of millions of years)

Explanation:

an example of this would be fossil fuels

Question 8
5 pts
Calls release energy from chemical bands of food molecules and provide that energy for the essential processes of life. This is performed in the cells of plants and animals. What is
this referred to as?

Answers

Answer:

Metabolism

Explanation:

Cell metabolism describes all the biochemical reactions that occur in the cell. This includes the generation of chemical energy from the substances in food.

This is what is used to provide energy for all the cell's processes. It is a requirement for all living things. Cellular metabolism is complex and is powered by enzymes.

Which atom of water takes an unfair share of electrons ?

Answers

Answer:

the oxygen atom takes more electrons

please help me I’ll give you brainliest Please tell me please help

Answers

energy from the sun- fission
photosynthesis is #6
energy is # 5
nucleus is # 4
Atom is # 2
combustion is # 1

Explanation:

[tex]same \: as \: above[/tex]

Which food would be helpful in increasing fiber and regularly clearing the digestive tract?
1. oranges
2. broccoli
3. ginger
4. mint

Answers

Broccoli is a type of vegetables that increase the fiber content and regularly clear the digestive tracts.

What is food?

Food is any substances that is consumed by a person and it releases one nutrients or the other and supplies energy to the body, build muscles, fight against diseases,renew strength, , aid metabolism and essential living of a man.

Therefore, Broccoli is a type of vegetables that increase the fiber content and regularly clear the digestive tracts.

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decrease 120 by 15%

Option (a) 77

(b) 87

(c) 92

(d) 95

(e) 102

Plz answer​

Answers

Answer:

its e (102)

Explanation:

so, 120*15/100

Cancelling the zeros!

so,

12*15/10

= 6*15/5

=6*3/1

First we have to find 15% of 120

=6*3

=18

So, 15% of 120 is 18

now decreasing it from 120

120-18

=102

SO THE OPTION (e) IS CORRECT

Do streams have high or low biodiversity

Answers

Answer:

High

Explanation:

All of the following are ways in which genetic engineering plays a role in medicine except

A.) identifying mutations.

B.) producing insulin and growth hormone.

C.) tracking how a condition is passed between generations.

D.) examining paternity.

Answers

Answer:

The Answer is D) examining paternity

Explanation:

Paternity is the state of being someone's father.  Being someone's father plays no role in medicine

Answer:

yes, the correct answer is D: examining paternity

Explanation:

I got it right in edg 2020

hope this is of help :)

Explain the use of stem cells in the field of medicine. Give three specific examples and explain how stem cells are specifically used to treat the disease/injury

Answers

Answer:

Doctors can use stem cells to rejuvenate damaged tissue. Or, they can replace tissue lost to disease or injury. These cells are also often used to better understand different kinds of diseases, and what kind of drugs would work the best with them.

Explanation:

I hope this helps.

how are infectious agents transmitted?

Answers

Answer:

they are transmitted by one person to another, like kissing, coughing, sneezing, or any physical contact from the infected person to someone who's not.

Even tho this isnt my strong suit, i know the answer. Infectious agents are transmitted by physical contact and by airborn particles.

A lentil plant with spotted seeds was crossed with another that had dotted seeds. The F1 plants turned out to have seeds that had spots and dots. What could be the reason?

Answers

Answer:

Lentil seed pattern is affected by codominance.

Explanation:

Lentil seed pattern is affected by codominance.

Match the terms to their definition
the number of individual organisms born into a population in a given year
the movement of individuals out of a population
the number of individual organisms that die in a population in a given year
the movement of individuals into a population
DONE

Answers

Answer:

the number of individual organisms born into a population in a given year  - Birth rate

the movement of individuals out of a population  - Emigration

the number of individual organisms that die in a population in a given year  - Death rate

the movement of individuals into a population  - Immigration

Explanation:

The birth rate describes the frequency of live births in a population. In contrast, the death rate, also called the mortality rate is the number of deaths in a population. They are usually reported as a number per 1000 people, per year.

Migration is the movement of organisms. Immigration is used to describe the act of organisms in a population into a new destination. Emigration is the act of organisms leaving their current population

Answer: the number of individual organisms born into a population in a given year  - Birth rate

the movement of individuals out of a population  - Emigration

the number of individual organisms that die in a population in a given year  - Death rate

the movement of individuals into a population  - Immigration

Explanation:

What is the purpose for creating uniform standards for scientific research??

Answers

Answer:

the purpose of wearing uniforms are either being professional or it's cheaper to wear uniforms

Explanation:

hope this helps

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