Human Impact on Biosphere video

Question 1

Biological Magnification:

Answer 1

Is the increase of toxins in a food chain. The toxins effects the increase as you go up the food chain.

Question 2

Air Pollution: Smog & Acid Rain (causes and effects)

Answer 2

Causes of..
Smog- NO (nitric oxide) + O2
NO2 (nitrogen dioxide)

Acid Rain- NOx = cars (vehicle emissions)
SOx = factories (factory emissions)
Effects of..
Smog: poses serious risks to public health and the environment.
Acid Rain: It impacts lakes, oceans, rivers and wetlands. Acid Rain makes water acidic.
Affects fish reproduction

Question 3

CFCs

Answer 3

CFCs are a type of gas used in aerosols and refrigerants. When released into the atmosphere, they react with ozone and break it down. This is dangerous, because the ozone in the upper atmosphere is what blocks out the damaging ultraviolet light from the earth’s surface.

Question 4

Greenhouse Effect

Answer 4

Warming by absorbing sun rays.