Carbon Cycle

Question 1

What are carbon sinks?

Answer 1

They absorb more carbon than they release

Question 2

What are carbon sources?

Answer 2

They release more carbon than they absorb.

Question 3

What’s photosynthesis?

Answer 3

It’s the process where plants use the light energy from the sun to produce carbohydrates in the form of glucose

Question 4

What’s respiration?

Answer 4

Respiration is a chemical process that happens in all cells, glucose is converted into energy used for growth and repair

Question 5

What’s decomposition?

Answer 5

It’s when organisms die and they are consumed by decomposers such as bacteria. The carbon from their bodies is released back into the atmosphere as carbon dioxide

Question 6

What’s burial and compaction?

Answer 6

It’s where organic matter is buried by sediments and becomes compacted. Over years these sediments containing carbon form hydrocarbons such as coal and oil.

Question 7

What’s diffusion?

Answer 7

It’s the spreading of something more widely

Question 8

What’s digestion?

Answer 8

The process of digesting food

Question 9

What’s soil respiration?

Answer 9

It refers to the production of co2 when soil organisms respire.

Question 10

What’s volcanic gases?

Answer 10

When a volcano erupts it releases gases such as co2, so2 and h2o

Question 11

What’s weathering?

Answer 11

It’s the break down or decay of rocks in their original place, at or close to the surface. Chemical weathering involves the absorption of co2 from the atmosphere.

Question 12

What’s erosion?

Answer 12

It’s the gradual destruction of something by natural elements

Question 13

What’s runoff?

Answer 13

The draining away of water from the surface of an area of land, a building or structure

Question 14

How much carbon did the E10 volcano emit?

Answer 14

150,000 tonnes of co2

Question 15

How many emissions do humans emit more than volcanoes?

Answer 15

100times more

Question 16

What was the impact of the Indonesian wildfire?

Answer 16

It emitted 7,300mg c per hectare. It contributed to the largest annual increase in atmospheric co2 since records began

Question 17

Where di the Indonesian wildfire occur specifically?

Answer 17

In the peatlands

Question 18

In 1997 what did the El Niño fires destroy, and how much carbon did it release?

Answer 18

Millions of hectares and released 810-2,570mt of carbon into the atmosphere

Question 19

What was the release of carbon equivalent to?

Answer 19

13-40% of average global carbon emissions from fossil fuels

Question 20

What are the trends between carbon and temperature?

Answer 20

They both fluctuate ,when temperature is up so is co2

Question 21

List ways in which farmers can reduce co2 emissions

Answer 21

Using fossil fuel efficiently
Use fertilisers efficiently
Reducing livestock numbers
Modifying the diets of livestock
Using alternative sources of energy e.g wind turbines(power)

Question 22

How much carbon is stored in the earths crust?

Answer 22

1000,000,000pg

Question 23

How much carbon is stored in the earths atmosphere?

Answer 23

750pg

Question 24

Photosynthesis takes in what amount of carbon annually ?

Answer 24

120pg

Question 25

Burning fossil fuels adds how much a year to the atmosphere?

Answer 25

6pg