Definitions
What is deforestation?
In photosynthesis, which gas is produced?
Oxygen
Which of the following does not add carbon to the atmosphere?
1.Volcanoes
2.Respiration
3.Subduction
3. Subduction
True or False: Animals absorb carbon dioxide, reducing the concentration in the air
False
What is an example of a carbon sink?
Oceans, plants, soil
What is a carbon source?
Anything that releases more carbon than it absorbs
Oxygen is consumed, Carbon Dioxide is produced
During the industrial revolution, society began to use _______, which increased the amount of CO2 in the atmosphere
Fossil Fuels
A living forest with both of plants and animals can act as a carbon sink, carbon source, or both?
Both
True or false: Most of the carbon on Earth is stored in volcanoes.
False
What is a carbon sink?
Anything that absorbs more CO2 than it releases
What do plants use to change into chemical energy in the photosynthesis process?
1. Sunlight
2. Oxygen
3. Sugar
1. Sunlight
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
Which of these steps is NOT involved in the carbon cycle?
1. Photosynthesis
2. Respiration
3. Fossil Fuels
4. Transpiration
4. Transpiration
Carbonic acid reaches the Earth's surface by way of_______.
1. Volcanoes
2. Earthquakes
3. Rain
3. Rain
Carbon dioxide is a "Greenhouse gas" because
it traps heat in the atmosphere
Sugars
Which of the following countries is responsible for 15% of total global carbon emissions?
1. China
2. USA
3. Russia
4. India
2. USA
The major biological exchange of carbon with the atmosphere is from....
Respiration and Photosynthesis
Carbon is a common component of_________.
1. Limestone
2. All organisms
3. Volcanic gases
4. All of the above
4. All of the above
What is a combustion reaction?
A reaction in which carbon dioxide is produced
Decomposers _____ ____ the carbon compounds in dead organisms and wastes and ____ _______ to the soil.
Break down; return nutrients
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
If the carbon in the atmosphere increases drastically due to increased amounts of carbon dioxide, what would happen?
Average temperature would increase
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