Revision-Earth

Question 1

What transfers energy from food in plants and animals?

Answer 1

Respiration

Question 2

What is the word equation for respiration?

Answer 2

Glucose+Oxygen->Carbon Dioxide+Water

Question 3

What do fuels such as wood, petrol and methane produce upon burning?

Answer 3

Carbon DIoxide

Question 4

What is the word equation for combustion?

Answer 4

Methane+Oxygen->Carbon Dioxide+Water(+Energy)

Question 5

What are the 2 processes that remove Carbon Dioxide from the atmosphere?

Answer 5

Photosynthesis and Dissolving in the Oceans

Question 6

What is the word equation for photosynthesis?

Answer 6

light

Carbon Dioxide+Water—->Glucose+Oxygen

Question 7

What do Carbon Sinks include?

Answer 7

The Ocean
The Soil
Areas of vegetation (forests)

Question 8

What do Carbon Sinks do?

Answer 8

They absorb and store carbon and its compounds.

Question 9

What is an ore?

Answer 9

An ore is a naturally occurring rock that contains enough of a mineral to make it worth extracting

Question 10

How can you tell if a metal will be extracted by electrolysis?

Answer 10

If a metal is higher than carbon in the reactivity series, it will be extracted by electrolysis.