Gases

Question 1

What are the main atmosphere gases?

Answer 1

nitrogen and oxygen.

Question 2

What are the main greenhouse gases?

Answer 2

Carbon Dioxide, Methane, Nitrous Oxide, Water Vapour.

Question 3

List Earth’s Chemical Spheres

Answer 3

Geosphere, Hydrosphere, Atmosphere and Biosphere.

Question 4

List stages of the water cycle.

Answer 4

Evaporation, Condensation, and Precipitation

Question 5

Define the Natural Greenhouse Effect

Answer 5

the greenhouse effect is a natural process that warms the Earth’s surface. When the sun’s energy reaches the Earths atmosphere, some of it is reflected back to space and some is absorbed and re-radiated by greenhouse gases.

Question 6

Define the enhanced greenhouse effect

Answer 6

The enhanced greenhouse effect is where extra greenhouse gases in our atmosphere trap too much of the Sun’s energy. This causes a warming effect, which some people call global warming.

Question 7

Define Biodiversity.

Answer 7

the variety of animals and plant life in the world or in a particular habitat.

Question 8

How does energy flow between each of Earth’s chemical spheres?

Answer 8

Energy from sun > heats atmosphere > heats Hydrosphere > heats Geosphere surface > fuels processes in biosphere

Question 9

Relationship between radiation and the greenhouse effect.

Answer 9

it absorbs infrared radiation from the sun if the form of heat, which is circulated in the atmosphere and eventually lost to space.

Question 10

Describe the carbon cycle, and how human activity impacts it

Answer 10

a process that moves carbon between plants, animals, and microbes; minerals in the earth; and the atmosphere. Humans effect it by burning fossil fuels.

Question 11

Describe the El Nino Southern Oscillation

Answer 11

a recurring climate pattern involving changes in the temperature of waters in the central and eastern tropical pacific ocean.

Question 12

Explain how biodiversity is impacted by human activity, using an example.

Answer 12

Biodiversity is impacted by humans through clearing forests and grasslands, mining, urban development and sewage discharge.

Question 13

How does increasing atmospheric CO2 increase global temperature?

Answer 13

Earths natural greenhouse effect requires carbon dioxide although if too much is added it causes it to supercharge increasing global temperatures.

Question 14

How does increasing atmospheric CO2 increase sea surface temperature?

Answer 14

as greenhouse gases trap more energy from the sun, the oceans are absorbing more heat, resulting in a increase in temperature.

Question 15

How does increasing atmospheric CO2 cause sea levels to rise?

Answer 15

as greenhouse gases trap more energy from the sun, the oceans are absorbing more heat, resulting in a increase the sea levels.

Question 16

How does increasing atmospheric CO2 cause ocean acidification?

Answer 16

Due to human driven increased levels of carbon dioxide in the atmosphere, there is more co2 dissolving into the ocean. this decreases the pH causing the the oceans to become more acidic.

Question 17

How are people reducing the issue of sea levels rising?

Answer 17

raising houses and roads, installing tidal gates to restrict ingress of tidal water into stormwater systems, building levees and sea walls, and undertaking beach nourishment

Question 18

How are people reducing the issue of Ocean Acidification?

Answer 18

drastically reduce the amount of carbon dioxide and other greenhouse gases that are produced globally

Question 19

How are people reducing the issue of Carbon emissions?

Answer 19

making power on-site with renewables and other climate-friendly energy resources.