Introduction to the Carbon Cycle

Question 1

Where is inorganic carbon found

Answer 1

In non-living things e.g sedimentary rock

Question 2

Where is organic carbon found

Answer 2

In living organisms e.g plants, trees and humans

Question 3

Organic carbon contains….bonds and is found in living organisms but inorganic carbon doesn’t contain….bonds and is found in non living things

Answer 3

Carbon-hydrogen

Question 4

Which type of carbon do living organisms contain

Answer 4

Organic carbon
(Carbon that contains carbon-hydrogen bonds)

Question 5

Which type of carbon do non-living things contain

Answer 5

Inorganic carbon
(Carbon that doesn’t contain any carbon-hydrogen bonds)

Question 6

What are autotrophic organisms

Answer 6

Producers (organisms at the bottom of the food chain) that carry out photosynthesis to produce their own food (glucose)
E.g plants

Question 10

2 examples of greenhouse gases that contain carbon

Answer 10

Carbon dioxide
Methane

Question 11

What is the main substance that limestone is made from

Answer 11

Calcium carbonate (in the form of calcite)

Question 12

Calcium carbonate exists in 3 forms which are…, … and…

Answer 12

Calcite
Aragonite
Vaterite

Question 14

The Earth’s interior meaning

Answer 14

The inner core, outer core, mantle and crust

Question 15

Where did carbon originate from

Answer 15

The Earth’s interior (The Earth’s interior is the outer core, inner core, mantle and crust)

Question 16

When the Earth formed where was carbon stored

Answer 16

In the mantle

Question 17

When the Earth formed carbon was stored in the mantle. How did it leave the mantle

Answer 17

Via the plate boundaries.
At constructive plate boundaries material from the mantle was brought to the surface
At destructive plate boundaries carbonate rocks were subducted and magma rose to the surface