Earth and Space

Question 1

what are the advantages of a good soil buffering capacity

Answer 1

the greater ability the soil has to resist changes in its pH when acidic or alkaline compounds are added to it

Question 2

what are some soil contaminants

Answer 2

acid rain and pesticides

Question 3

how does acid rain contaminate soil

Answer 3

destroys nutrients and kills decomposers needed for nutrient recycle

Question 4

give an example of the phosphorus cycle

Answer 4

you have phosphate rocks and then when it rains it causes a erosion and then it goes into the water and then the phosphates dissolves and then it settles down creating more phosphate rocks. the same thing happens when you use fertilizer containing phosphate

Question 5

explain eutrophication

Answer 5

1-Phosphate gets into water
2-Algae grows (phosphate=water)
3-Algae grows and covers surface of water and blocks sunlight
4-Plants don’t provide as much O2 and fishes die
5-Algae dies and sinks to the bottom making water more shallow

Question 6

how do human activities accelerate eutrophication

Answer 6

humans use many products containing phosphate which causes more phosphate to be in the water

Question 7

what are prevailing winds

Answer 7

major atmosphere currents that blows in a given direction according to atmospheric circulation

Question 8

are some air contaminants

Answer 8

acid rain, metals like mercury arsenic and lead are burned and toxic for humans, CFCs destroy the ozone layer, dust and other particles destroy the respiratory system

Question 9

how do prevailing winds effect on the dispersal of air pollution

Answer 9

prevailing winds drag these air pollutants all over the region

Question 10

what is soil buffering capacity

Answer 10

soil has the ability to limit pH variations