Changes in the atmosphere (summer exam)

Question 1

The amounts of these gases in the atmosphere can change due to n_______ or m_____m____ pollution causes.

Answer 1

Natural or man made

Question 2

Natural changes include:
V_______c activity (releases carbon dioxide)
L__________g (leads to oxides of n______ being produced)

Answer 2

Volcanic, Lightning nitrogen

Question 3

Man-made changes include:
Burning of f_______f____ (releases carbon dioxide)
Deforestation (prevents carbon dioxide from being taken in)
Cattle farming and rice farming (release m_______)

Answer 3

Fossil fuels, methane

Question 4

Man-made changes
Methane levels are in_________ in the atmosphere as humans are doing more:
Cattle farming – cattle release m_______ when digesting food
Rice farming - small micr____________ under the water release methane

Answer 4

Increasing, Methane, microorganisims

Question 5

The carbon dioxide levels in the atmosphere are ____________ due to ________ activity.

Answer 5

Increasing, human

Question 6

Two major causes of this are:
Burning f_______f_____ to power cars, and to make electricity in power stations
Deforestation, means less carbon dioxide is r_________d from the atmosphere by p____________

Answer 6

Fossil fuels, removed, photosynthesis

Question 7

Each of these things that release carbon dioxide into the atmosphere are known to have a carbon footprint. This is a measure of the amount of carbon dioxide released into the atmosphere as a result of the activities of a particular individual, organisation, or community.

Answer 7

MUST KNOW or UNDERSTAND