Question

Which of the following best describes a benefit of one type of nonrenewable energy?

Petroleum can be found nearly anywhere and is easily extracted.

Natural gas does not produce greenhouse gases as other energy sources do.

Coal is relatively inexpensive compared to other forms of energy.

Nuclear power does not produce any form of pollution.

Answer 1

i think A

Answer 2

@apoorvk @Calliope @Shane_B

Answer 3

This isn't even a biology question...

Answer 4

well it on my bio assignment and i dnt get it

Answer 5

I think A is unlikely: consider that parts of the world (e.g. Saudi Arabia) with a large supply of petroleum are getting very rich off it.

Answer 6

but once you burn it it cant come back

Answer 7

nvm

Answer 8

i change my answer to D

Answer 9

You think nuclear power doesn't produce ANY form of pollution?

Answer 10

it says its clean

Answer 11

it says it does not pollute the air

Answer 12

but if leaked

Answer 13

mayhem

Answer 14

What happens to the waste?

Answer 15

idk

Answer 16

ok is it C

Answer 17

They generally bury it somewhere, I think. Nuclear waste is a huge problem with nuclear power stations, because they produce all this waste and then the waste has to be kept safe for a VERY long time so it doesn't contaminate the environment.

Answer 18

http://en.wikipedia.org/wiki/Nuclear_waste

Answer 19

ok i think C now

Answer 20

I agree. Coal is generally cited as being relatively cheap.

Answer 21

oh ive seen that nuclear waste is kept in those yellow barrels

Answer 22

At which of the following points during the carbon cycle is energy transformed from potential to kinetic energy?

When an animal transfers excess energy from its food into its fat cells

When muscle cells break up food molecules to make the muscle contract

When carbon dioxide in water is used to help build tissues of aquatic plants

When light energy is stored in a glucose molecule during photosynthesis

Answer 23

@apoorvk

Answer 24

Do you know what kinetic energy is?

Answer 25

yes when its in motion and potential is when the energy is stored

Answer 26

Natural gas does not produce greenhouse gases as other energy sources do. - CNG produces mostly just water and CO2, so definitely less harmful relatively.

Answer 27

Right, so which of those answers involve motion?

Answer 28

@apoorvk CO2 is a greenhouse gas.

Answer 29

*relatively*, @Calliope

Answer 30

B

Answer 31

?

Answer 32

@apoorvk It might produce less, but it would still be incorrect to say that it doesn't produce any (like in answer b).

Answer 33

forget him help me

Answer 34

i think B

Answer 35

B would make sense, I think.

Answer 36

Energy transfers in cellular respiration are different from those in photosynthesis because in cellular respiration

electrical energy is transformed into mechanical energy; in photosynthesis, electrical energy is transformed into chemical energy

radiant energy is transformed into mechanical energy; in photosynthesis, radiant energy is transformed into chemical energy

chemical energy is transformed into mechanical energy; in photosynthesis, radiant energy is transformed into chemical energy

chemical energy is transformed into radiant energy; in photosynthesis, radiant energy is transformed into electrical energy

Answer 37

last one

Answer 38

i think A

Answer 39

nvm