Ecology: Thr Carbin Cycle And Global Warming

Question 1

Carbon dioxide and the atmosphere

Answer 1

The only thing that removes CO2 from the atmosphere is photosynthesis.
Plants use it to make fats, carbohydrates and proteins.
Birth plants and animals respiration put CO2 back into the atmosphere

Question 2

Carbon from dead plants and animals

Answer 2

Can end up as fossil fuels. When this is combusted/burned it releases carbon.
Some dead plants and animals can be:
-Fertilised
-Composed by microorganism
-Turned into natural fertiliser by humans

Question 3

Greenhouse effect

Answer 3

This is where radiation from the sun is trapped by the blanket of gases (co2) in the atmosphere. Leads to increase globals temperatures

Question 4

Effects of global warming

Answer 4

• climate change/ more weather extremes such as droughts and severe storms
• polar ice caps to melt
• increased flooding
• more land to become desert

Question 5

How to reduce CO2

Answer 5

• Plant more trees
• reduce deforestation
• burn less fossil fuels by using alternative fuels and/or becoming more energy efficient