Human activities and global climate, unit 6

All of the following are greenhouse gases except:

• carbon dioxide

• methane

• nitrous oxide

• sodium chloride

Which of the following statements about CO2 is not true?

• Adding CO2 to the atmosphere by burning fossil fuels is helpful to the planet

• Plants take in oxygen and release CO2 during respiration

• Life as we know it could not exist without CO2

• CO2 is a greenhouse gas

Climate change causes

• ice caps to increase

• severe storms to be less frequent

• sea levels to drop

• severe storms to be more frequent

The most noticeable change in greenhouse gases in the atmosphere occurred after

• WWII

• Industrial Revolution

• Civil War

• Precambrian

All of the following cause climate change EXCEPT

• volcanic eruptions

• greenhouse gases

• deforestation

• planting a lot of trees

Which of the following is NOT a consequence of Artic Ice melting?

• fewer greenhouse gases

• earth's temperature increases

• loss of habitat in the artic ecosystem

• sea levels rise causing flooding

Things that can be done to limit the Human Footprint include:

• increasing photosynthesis

• burning fossil fuels

• using plastic containers

• eating a diet of meat

Weather is

• tropical or polar

• the conditions of the atmosphere over specified period of time about 30 years.

• hot and humid all year long

• conditions of the atmosphere over short period of time

The earth's climate has

• always been the same

• had periods of extreme warmth and cold, but has been warming over the last 100

  years

• been hot and humid for millions of years

• always been a constant and favorable interglacial period

The greenhouse effect

• is the way in which heat is trapped close to the Earth’s surface.

• helps make Earth habitable for living beings.

• shields Earth from the sun’s infrared radiation

• all of the above