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Definitions

100

What is deforestation? 

The process of tearing down forests

200

What is a carbon source?

Anything that releases more carbon than it absorbs

300

What is a carbon sink?

Anything that absorbs more CO2 than it releases

400

Carbon dioxide is a "Greenhouse gas" because 

it traps heat in the atmosphere

500

What is a combustion reaction? 

A reaction in which carbon dioxide is produced

Gas Exchange Processes

100

In photosynthesis, which gas is produced?

Oxygen

200

In respiration, what gas is consumed? Which gas is produced?

Oxygen is consumed, Carbon Dioxide is produced

300

What do plants use to change into chemical energy in the photosynthesis process?

1. Sunlight
2. Oxygen
3. Sugar

1. Sunlight

400

In photosynthesis, plants turn CO2 in oxygen and 

Sugars

500

Decomposers  _____ ____ the carbon compounds in dead organisms and wastes and ____ _______ to the soil.

Break down; return nutrients

Carbon in the Atmosphere

100

Which of the following does not add carbon to the atmosphere?

1.Volcanoes
2.Respiration
3.Subduction

3. Subduction

200

During the industrial revolution, society began to use _______, which increased the amount of CO2 in the atmosphere

Fossil Fuels

300

Which of the following is NOT a way that we could reduce the extra carbon that is getting into the atmosphere?

cutting down trees 

using renewable energy 

conserving electricity 

planting trees

cutting down trees

400

Which of the following countries is responsible for 15% of total global carbon emissions? 

1. China
2. USA
3. Russia
4. India

2. USA

500

Although direct measurements of atmospheric carbon dioxide have only been taken consistently since the 1950's, scientists have been able to retrieve data from the past 500,000 years. The have been able to do this by looking at_______. 

1. Ice cores from glaciers
2. Sediment from ocean
3. Tree Rings

1. Ice cores from glaciers

Carbon Cycle

100

True or False: Animals absorb carbon dioxide, reducing the concentration in the air

False

200

A living forest with both of plants and animals can act as a carbon sink, carbon source, or both?

Both

300

Which of these steps is NOT involved in the carbon cycle? 

1. Photosynthesis
2. Respiration
3. Fossil Fuels
4. Transpiration

4. Transpiration

400

The major biological exchange of carbon with the atmosphere is from....

Respiration and Photosynthesis

500

If the carbon in the atmosphere increases drastically due to increased amounts of carbon dioxide, what would happen? 

Average temperature would increase

Random

100

What is an example of a carbon sink?

Oceans, plants, soil

200

True or false: Most of the carbon on Earth is stored in volcanoes. 

False

300

Carbonic acid reaches the Earth's surface by way of_______. 

1. Volcanoes
2. Earthquakes
3. Rain

3. Rain

400

Carbon is a common component of_________. 

1. Limestone
2. All organisms
3. Volcanic gases
4. All of the above

4. All of the above

500

Which statement is NOT true about carbon? 

1. It is part of carbon dioxide
2. Diamonds are made of carbon
3. Carbohydrates contain carbon
4. It is the most common element in the human body

4. It is the most common element in the human body