Unit 7 Carbon Cycle Checkpoint

How many times did you visit the atmosphere?

Answer explanation

The question asks about visits to the atmosphere, which is typically not quantifiable for individuals. Therefore, the answer is likely zero, as most people do not visit the atmosphere.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

How many times did you visit the plants?

Answer explanation

The question asks for the number of visits to the plants. A clear count or specific number is needed to answer accurately, indicating how many times the plants were visited.

How many times did you visit the soil?

Answer explanation

The question asks for the number of visits to the soil, which implies a count. If you have a specific number in mind, that would be your answer. For example, if you visited the soil three times, the answer is 3.

Carbon can be found in...

• The atmosphere

• Soil

• Fossil fuels

• All of the above

Answer explanation

Carbon is present in various forms: in the atmosphere as carbon dioxide, in soil as organic matter, and in fossil fuels like coal and oil. Therefore, the correct answer is 'All of the above'.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which process removes carbon dioxide from the atmosphere?

• Deforestation

• Tree Farms

• Burning Fossil Fuels

• Cellular Respiration

  (Breathing Out)

Answer explanation

Tree farms actively grow trees, which absorb carbon dioxide during photosynthesis, thus removing it from the atmosphere. In contrast, deforestation, burning fossil fuels, and cellular respiration release CO2.

Tags

NGSS.MS-LS1-6

Which of the following removes carbon from the atmosphere?

• Combustion

• Respiration

• Photosynthesis

• Death

Answer explanation

Photosynthesis is the process by which plants absorb carbon dioxide from the atmosphere and convert it into oxygen and glucose, effectively removing carbon from the air. The other options do not remove carbon.

Tags

NGSS.MS-LS1-6

What kind of organism takes out the most carbon from the atmosphere?

• Plants

• Bacteria

• Animals

• Humans

Answer explanation

Plants are the primary organisms that absorb carbon dioxide from the atmosphere through photosynthesis, making them the most significant contributors to carbon sequestration compared to bacteria, animals, and humans.

Tags

NGSS.MS-LS1-6

Which reservoir is most likely to receive carbon after fossil fuels are burned?

• Atmosphere

• Ocean

• Plants

• Soil

Answer explanation

When fossil fuels are burned, carbon dioxide is released into the atmosphere, making it the primary reservoir for carbon emissions. The atmosphere absorbs the majority of carbon from these activities.

What process releases the most carbon into the atmosphere?

• Photosynthesis

• Diffusion into Ocean

• Forest Fire

• Making Carbonic Acid

Answer explanation

Forest fires release significant amounts of carbon dioxide as they burn vegetation, making them a major source of carbon emissions. In contrast, photosynthesis and diffusion into the ocean absorb carbon, while making carbonic acid does not release it.

Which reservoir sequesters carbon for the longest periods of time?

• Soil

• Ocean

• Atmosphere

• Fossil fuels and rocks

Answer explanation

Fossil fuels and rocks sequester carbon for millions of years, far longer than soil, oceans, or the atmosphere, which have much shorter carbon cycling times.

Tags

NGSS.HS-ESS2-6