Humans And The Environment

Question 0

Acid rain: how does the gas enter the water molecules?

Answer 0

It dissolves into water droplets

Question 1

Acid rain: which gas is found in acid rain?

Answer 1

Sulphur dioxide

Question 2

Acid rain: name one effect.

Answer 2

Kills fish - lowers the pH in rivers and lakes

Question 3

Eutrophication: what is it?

Answer 3

1) run off fertilisation (NITRATES) into river - leaches
2) algae excessively grows and blocks light into river - algal bloom
3) kills off plants on river bed- no light
4) bacteria uses up oxygen in water
5) fish die

Question 4

Global warming: what happens to the increased carbon dioxide/methane

Answer 4

They absorb the heat energy that enters the atmosphere (some escapes)

Question 5

Global warming: why is the level of carbon dioxide/methane rising?

Answer 5

1) more factories
2) more cars
3) cutting down of trees (less co2 absorbed) - more room for cattle

Question 6

Global warming: what effects does the increase of temperature have?

Answer 6

1) ice caps melt, increased sea levels, flooding

2) crop yields go down

Question 7

What ways are pollution reduced?

Answer 7

Increase of public transport