Sulfur & Phosphorus Cycles & Human Acitivity

Question 0

Sulfur cycle: Mining and extraction (2) -

Answer 0

Results in accelerated movement of sulfur from crust.

Acid rain, resulting in damage to trees & buildings and acidifying lakes and rivers, killing fish and other organisms.

Question 1

In the biogeochemical cycle,

Answer 1

Nothing happens in isolation.

Question 2

Phosphorus cycle:

Amount of phosphorus removed from the crust each year by mining -

Answer 2

12 x 10^12 g P

Question 3

Phosphorus cycle: The production of phosphate fertilisers,

Answer 3

Removed through harvesting and eventually released as human or animal sewage.

Question 4

Phosphorus cycle:

Sewage treatment removes 40% of phosphorus, the remainder

Answer 4

Ends up in lakes, rivers or the ocean.