Topic 7 Environmetal Changes And The Water Cycle And The Carbon Cycle

Question 1

What does a change distribution mean

Answer 1

Changes in the environment

Question 2

Examples of changes

Answer 2

Availability of water
temperature
atmospheric gases

Question 3

How did the distribution of organisms change with availability water

Answer 3

Distribution of some animals and plant species in the tropics change between wet and dry season when there is more or less rainfall so more or less water available

Question 4

How much the distribution of organisms change with the temperature

Answer 4

The distribution of bird species in Germany is changing because of the rise in average temperatures

Question 5

How does a change in the composition of atmospheric gases affect the distribution of an organism

Answer 5

The distribution of some species changes in areas where there is more air pollution
some species of lichen can’t grow in areas where sulphur dioxide is given out by certain industrial processes

Question 6

What can environmental changes be caused by

Answer 6

Seasonal factors
geographic factors
human interaction

Question 7

Water cycle

Answer 7

Energy from the Sun makes water evaporate turn into water vapour
Water also evaporates from plants known as transpiration
Warm water vapour is carried upwards when it gets high enough it cools and condenses to form clouds
Water falls from clouds is precipitation onto land where it provides fresh water the plants and animals
Then drains into the sea for the whole process to start again

Question 8

What do plants take in the passed up the food chain

Answer 8

Take in carbon, oxygen, hydrogen and nitrogen from the soil in the air in complex compounds

Question 9

When are the materials return to the environment as waste products

Answer 9

When organisms die or decay

Question 10

When do materials decay

Answer 10

When they’re broken down by microorganisms

Question 11

What conditions help decay happen faster

Answer 11

Warm, moist, aerobic (oxygen rich) conditions because microorganisms are more active in these conditions

Question 12

What does decay put Back into the soil

Answer 12

The stuff plants need to grow e.g. mineral ions back into the soil

Question 13

What happens in a stable community

Answer 13

The materials taken out the soil and used by the plants or balance by those that are put back in

Question 14

Carbon cycle

Answer 14

Look at paper

Question 15

What is CO2 removed from the atmosphere by

Answer 15

Green plants and algae during photosynthesis
carbon is made into glucose which can be turned into carbohydrates fats and proteins that make up the bodies of plants and algae

Question 16

What happens when plants and algae respire

Answer 16

Some carbon is returned to the atmosphere as CO2

Question 17

What happens to the carbon when plants and algae are eaten by animals

Answer 17

The carbon moves through the food chain

Question 18

What happens when animals respire

Answer 18

Some carbon his return to the atmosphere as CO2

Question 19

When plants algae and animals die and other animals (detritus feeders) and What else feed on there remains

Answer 19

Micro organisms when these organisms respire CO2 is returned into the atmosphere

Question 20

What is animals waste also broken down by

Answer 20

Detritus feeders And microorganisms

Question 21

What does the combustion of warden fossil fuels release into the atmosphere

Answer 21

CO2

Question 22

What is carbon energy constantly being cycle from

Answer 22

The air through food chains and eventually back into the air again