Carbon Cycle Review

When humans burn fossil fuels, most of the carbon quickly enters the _______ as carbon dioxide.

• Water

• Atmosphere

• Sun

• Air

Which process contributes carbon dioxide TO the atmosphere?

• Decomposition

• respiration

• photosynthesis

• tree farms

Which of the following is correct?

• There is as much carbon on earth as when it was formed

• Carbon is being created whenever it is recycled

• Carbon is lost every time it is recycled

• Carbon changes to different forms and is never recovered

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Respiration is the process by which animals take in _____ and release _____ to make energy.

• photosynthesis, air

• carbon, oxygen

• oxygen

• oxygen, carbon dioxide

Tags

NGSS.MS-LS1-2

Which of the following statements is most accurate?

• A specific and limited amount of carbon exists on Earth, and it moves through living and nonliving materials through the carbon cycle.

• The amount of carbon in the universe cycles, gradually increasing as it moves up the food chain, and decreasing until the next phase of the cycle.

• Carbon flows through the food chain as animals eat it, then decomposes and is permanently removed from the system when the food chain is complete.

• Carbon enters Earth's atmosphere when animals exhale, then moves into space where its amount steadily increases, and finally moves back into Earth's atmosphere to be used again.

Tags

NGSS.MS-ESS2-1

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Where is most of the carbon stored on Earth?

• atmosphere

• oceans

• plants

• Earth's mountains

Tags

NGSS.MS-LS1-6

Carbon is the chemical backbone of life on Earth. What is NOT a reason the carbon cycle is important to all ecosystems on Earth?

• Carbon regulates the Earth's temperature

• Carbon makes up the food that sustains us

• Carbon provides nitrogen for plants

• Carbon provides energy that fuels our global economy

Tags

NGSS.MS-LS2-3

Why do humans need some amount of greenhouse gases in our environment?

• They help heat release out into space, keeping Earth cool.

• It helps plants grow better because greenhouses are good for plants.

• They help keep the Earth at a comfortable warm temperature.

• Greenhouse gases block the Sun's energy from reaching Earth.

Tags

NGSS.HS-ESS2-6

What do ocean currents carry that MOST affects climates?

• rain

• heat

• ships

• fish

Tags

NGSS.MS-ESS2-6

Which of the following factors that impact climate change are NATURAL PROCESSES?

Choose all that apply.

• cement production

• solar radiation

• agricultural activities

• burning of fossil fuels

• volcanic activity

Tags

NGSS.MS-ESS2-4