Everchanging earth (what i forget)

Question 1

Theory of continental drift

Answer 1

Continents used to be connected together. Called Pangea

Question 2

How was the early atmosphere formed?

Answer 2

Intense volcano activity caused gasses such as CO2 and water vapour

Question 3

How has the concentration of ammonia and methane in the atmosphere
changed?

Answer 3

As oxygen levels increased:
Ammonia + oxygen = nitrogen + water

Methane + Oxygen = carbon dioxide + water

Question 4

When burning fuels _____ is produced

Answer 4

Carbon dioxide and sulfur dioxide

Question 5

How is acid rain formed?

Answer 5

Sulfur dioxide released from the burning of fuels dissolved in rain water = sulfuric acid (acid rain

Question 6

Effects of acid rain

Answer 6

Damaged buildings
Corrosion of metal
Kills crops + trees
Lowers pH in lakes = kills organisms

Question 7

Identify oxygen

Answer 7

Glowing splint will relight

Question 8

Identify carbon dioxide

Answer 8

Lime water turns cloudy