Deforestation often leads to an increase in the number of endangered species of plants and or animals.
What is deforestation?Deforestation refers to the conversion of forests to non-forest uses. In other words, it is the removal of forest layers for non-forest reasons.
Since forests represent a hotspot for plant and animal biodiversity, their removal automatically means a decrease in biodiversity.
Endangered species are species of plants and animals that are under the threat of going extinct either due to natural or anthropological effects.
Thus, deforestation often leads to an increase in the number of endangered species.
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Answer:
b
Explanation:
MARKING BRAINLIEST
answer
Which of the following increases air’s ability to hold water vapor? a. increase in wind speed c. decrease in temperature b. increase in temperature d. decrease in air pressure Please select the best answer from the choices provided A B C D
Increase in temperature increases air's ability to hold water vapour. That is option B.
What is water vapour?Water vapor is defined as the form of water when in gaseous state.
Water turns to vapour when heat is added to it leading to evaporation.
Therefore, Increase in temperature increases air's ability to hold water vapour.
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What is a major problem with CFCs?
It is a greenhouse gas.
It does not readily break down in the atmosphere.
It isn't a good refrigerant.
It is toxic to breathe.
The major problem with CFCs is that It is a greenhouse gas, Option A is correct.
What are CFC's ?
Chlorofluorocarbons (CFCs) are nontoxic, nonflammable chemicals containing atoms of carbon, chlorine, and fluorine.
They are used in the manufacture of aerosol sprays, blowing agents for foams and packing materials, as solvents, and as refrigerants.
CFCs are classified as halocarbons, a class of compounds that contain atoms of carbon and halogen atoms
The major problem with CFC's is that they are green house gases
It destroys ozone in the upper atmosphere (stratosphere).
CFCs can produce more than 10,000 times as much warming, pound for pound, once they are in the air.
It is not only because of their dramatic warming potential but also
They were found to be the primary cause of the rapidly escalating destruction of the Earth’s ozone layer,
which protects the planet from dangerous, cancer-causing levels of ultraviolet radiation.
Therefore The major problem with CFCs is that It is a greenhouse gas, Option A is correct.
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17. Explain the relationship between atmospheric pressure and the actual boiling point of a liquid.
Answer:
The lower the atmospheric pressure, the lower the boiling point will be. The greater the pressure, the more energy required for liquids to boil, and the higher the boiling point.
Use the word bank below to complete the statement. Not all of the words will be used.
Word Bank:
sum. Enthalpy. Heat. Total.
Temperature. Moles. -ΔH. +ΔH.
Hess’s Law describes how the ____ energy of a reaction consists of the ___ of the energy changes of the individual step reactions.
Hess’s Law describes how the heat energy of a reaction consists of the total of the energy changes of the individual step reactions.
What is the statement if Hess's law of constant heat summation?Hess's law of constant heat summation states that the total heat changes that occur in a reaction is independent of the several intermediate pathways of the reaction, but is a sum of all the heat changes that occur.
Hess’s Law describes how the heat energy of a reaction consists of the total of the energy changes of the individual step reactions.
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which term best defines the feeding behavior of most gulls?
Answer:
Gulls, or colloquially seagulls, are seabirds of the family Laridae in the suborder Lari. They are most closely related to the terns and skimmers and only distantly related to auks, and even more distantly to waders. Until the 21st century, most gulls were placed in the genus
what are the molecular structure,structural formula and strength of intermolecular forces for the substances methylated spirits,Acetone,water,glycerine and oil?
Answer:
Glycerine, water and methylated spirits have hydrogen bonds between the molecules. However, in water and Glycerine these intermolecular forces are very strong while in the methylated spirits they are slightly weaker. This leads to the higher boiling point for water and Glycerine.
Explanation:
In chemistry a molecular formula indicates every single atom and its numbers in a chemical compound. Hence the molecular formula C3H8O3 simply says that there are three carbon (C) atoms, eight hydrogen (H) atoms and three oxygen (O) atoms in this compound.
what three things did rutherford discover about the atom
The lewis dot structure rule states that
s=n-a.
recall that s represents the.total
number of valence electrons needed for
all the atoms in a molecule to achieve an
octet.
what is s for silicon tetrachloride, sic14?
Answer:
32
Explanation:
The total valence electron is available for the Silicon tetrachloride
lewis structure is 32
Which sentence best describes Earth's rotation?
Earth rotates on its axis once every two days.
Earth rotates on its axis once every year.
Earth rotates on its axis once every 24 hours.
Earth rotates on its axis twice every 24 hours.
Answer:
C.
Explanation:
no explanation but hope this helps
Answer:
A
Explanation: IF U PRESS A U GO TO COLLAGE
......................
A chemist heated a sample of steel wool in a burner flame exposed to oxygen in the air. He also heated a sample of steel wool in a container of nearly 100% oxygen. The steel wool sample in the container reacted faster than the other sample. a.Explain why.
Answer:
Explanation:
Explanation
Look at the equation that describes what is going on.
4Fe(s)+3O2(g)⟶2Fe2O3
Air is about 20% oxygen. The flame of steel wool is a gentle one since the oxygen is in limited supply.
Steel wool is about 99 % Iron. The rection above tells you that when steel wool ignites, it becomes Fe+3
Answer: The rule is the more oxygen you have, the more violent the burning process.
It takes 83 ml of a 0. 45 m naoh solution to neutralize 235 ml of an hcl solution. what is the concentration of the hcl solution?.
Answer:Expert-verified answer
n(NaOH) = 0.037 moles of NaOH. HOPE THIS HELPS!!Apr 20, 2020
Explanation:
n the currently accepted model of the atom, a fuzzy cloud around a hydrogen nucleus is used to represent the
In the model of the atom, a fuzzy cloud around a hydrogen nucleus is used to represent the general region where the atom's electron is most likely located.
What is an atomic model?An atomic model is a graphic representation and/or diagram used to identify the components of atoms.
An atomic model may have into account all its components (i.e., electrons, protons, and neutrons).
In conclusion, in the model of the atom, a fuzzy cloud around a hydrogen nucleus is used to represent the general region where the atom's electron is most likely located.
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: An unknown metal crystallizes in the cubic crystal structure. The metal has a radius 140pm, atomic mass of 135 g/mol, and density of 13.3 g/cm3. What type of cubic unit cell does this metal crystallize as
The cubic unit cell this metal crystallize as is BCC structure .
What is unit cell ?
The structure of a crystalline solid, whether a metal or not, is best described by considering its simplest repeating unit, which is referred to as its unit cell.
The unit cell consists of lattice points that represent the locations of atoms or ions.
The entire structure then consists of this unit cell repeating in three dimensions
[tex]\rm \rho =\dfrac{nM}{N_{0} a^{3}} \\\\\\\\\rm n =\dfrac{\rho N_{0} a^{3}}{M} \\\\\\\\Assuming\; it \; to \; be \; a\; BCC\; structure \\\\\\ r = \dfrac{\sqrt{3} \times a}{4} \\\\\\Therefore\; a = 3.23 \times 10^{-8}\\\\\\\\\rm n =\dfrac{13.3 \times 6.022 \times 10^{23}\times 3.23^{3}\times (10^{-8})^{3}}{135} \\\\[/tex]
n= 2
Hence our assumption was correct
It is a BCC structure .
Therefore the cubic unit cell this metal crystallize as is BCC structure .
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Sulfuric acid can dissociate into _______ ions and hydrogen ions which lowers the ph causing acidic environments that are very harmful to many ecosystems.
Sulfuric acid can dissociate into hydronium ions (H3O+) and hydrogen sulfate ions (HSO4−).
Does sulfuric acid dissociate or ionize?
Sulfuric acid is a very strong acid which ionizes into hydronium ions (H3O+) and hydrogen sulfate ions (HSO4−) while on the other hand, in dilute solutions the hydrogen sulfate ions also dissociate, forming more hydronium ions and sulfate ions (SO42−).
So we can conclude that Sulfuric acid can dissociate into hydronium ions (H3O+) and hydrogen sulfate ions (HSO4−).
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describe one advantage and one disadvantage of obtaining energy from nuclear fission
Answer:
one advantage: no air pollutants, one disadvantage: gives off radioactive waste
As hydrochloric acid is added to a solution of sodium hydroxide, the pH of the mixture will
A) stay the same
B) increase
C) decrease
D) change unpredictably
C) decrease
hydrochloric acid: strong acid, pH <7
sodium hydroxide: strong base, pH>7
What is the mechanical energy of an object?
O the sum of its thermal and chemical energy
O the sum of its potential and kinetic energy
the sum of its potential and chemical energy
the sum of its thermal and kinetic energy
Explanation:
the sum of potential and kinetic energy
What natural processes can contribute to acid rain
Answer:
The major natural causal agent for acid rain is volcanic emissions. Volcanoes emit acid-producing gases to create higher than normal amounts of acid rain or any other form of precipitation such as fog and snow to an extent of affecting vegetation cover and health of residents within the surrounding.
describe what happens when water vapour cools to liquid water(change in arrangement,change in movement,change in energy)
Answer:
CONDENSATION When steam is cooled, it releases thermal energy and turns into its liquid state. This process is called condensation.
Explanation:
i could really use some help with this question, thank you in advance!
Jack would probably say his lines with a _______ voice.
A. puzzled
B. delighted
C. whining
A. because he might be in trouble in a play
Give the name for the alkyl.
Let's see
Calculate carbons
Total 3 ,prop word root to be usedCheck bondings
All single bondsThe compound is
-CH2-CH2-CH3The name is
Propyl5CH4
How many atoms
C=
H=
Answer:
carbon aroms are 5
hydrogen atoms are 20
A sample of (NH4)2SO3 that contains 6 000 oxygen atoms must also contain how many hydrogen atoms?
Select one:
O a. 16 000
O b. 8 000
O c. 4000
O d. 6 000
[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]
In 1 molecule of [tex] \sf{(NH_4)_2SO_3} [/tex] has 3 molecules of Oxygen. but it is given that the sample contain 6000 Oxygen atoms. therefore, the number of molecules in the sample is ~
[tex]\qquad \sf \dashrightarrow \: \dfrac{6000}{3} [/tex]
[tex]\qquad \sf \dashrightarrow \: 2000 \: \:molecules[/tex]
Now, there are 8 atoms of Hydrogen in each molecule, so total number of H - atoms in 2000 molecules of the given compound would have ~
[tex]\qquad \sf \dashrightarrow \: 2000 \times 8[/tex]
[tex]\qquad \sf \dashrightarrow \: 16000 \: \: H-atoms[/tex]
If an ice cream melts do you have more less or the same amount of matter after the melting
When ice cream melts you have the same amount of matter after the melting.
Principle of conservation of massAccording to the law of conservation of mass, mass is neither created nor destroyed but can be converted from one form to another. Hence, a mass of ice can be converted to an equal mass of water.
When ice cream melts you have the same amount of matter after the melting.
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The diagram depicts the flow of
water through a dam. The flow
of water causes the turbine
blades to turn. This, in turn,
causes : generator to provide
energy to the power lines.
Which of the flowcharts best
outlines the conversion of
energy
A) chemical energy to kinetic
energy to electrical energy
B) Solar energy to mechanical
energy to electrical energy
C) kinetic energy to mechanical
energy to electrical energy
D) mechanical energy to
electrical energy to kinetic
energy
Why would solar power be the best energy option for our new high school?
Explain why!
Answer:
Energy costs are high for many school districts. Therefore, unlimited free power generated by the sun can deliver huge cost savings when compared to grid-generated power. With a modestly sized solar array, cost savings are alike modest.
Explanation:
Select the correct answer. what is the solution to the problem rounded to the correct number of significant figures? 8.01 × 4.1 = ? a. 32.8 b. 32.84 c. 32.841 d. 33
The solution to the problem rounded to the correct number of significant figures is 32.841. Details about multiplication can be found below.
How to multiply to correct significant figures?Multiplication is the process of computing the sum of a number with itself a specified number of times.
According to this question, a mathematical value of 8.01 is multiplied by 4.1.
8.01 × 4.1 = 32.841 (5 s.f)
Therefore, the solution to the problem rounded to the correct number of significant figures is 32.841.
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Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with this sample so that the rate of neutron production drops down to 1.8 neutrons per fission event, which will be effective at achieving a critical mass? check all that apply. remove a deflective shield surrounding the sample. remove absorbent material mixed in with the sample. compress the sample of americium-241.
Critical mass can be achieved by compressing the sample of americium-241 and also removing the deflective shield surrounding the sample.
What is critical mass?Critical mass of a nuclear reaction is the mass of nuclear fuel which is just sufficient for a nuclear fission reaction to proceed and be sustained.
In order to achieve critical mass, the density of the fuel is increased by compressing the sample of americium-241 and also remove the deflective shield surrounding the sample.
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Answer: A
Explanation:
