Which natural methods remove CO₂ from the atmosphere?

• respiration of living organisms

• photosynthesis by plants and absorption of CO2 from the atmosphere by ocean water

• evaporation of ocean water

• melting of glacial ice

Tags

NGSS.MS-LS1-6

Meg drew this model to show the carbon cycle. However, there are errors in her model. Which arrows point in the wrong direction?

• A

• B

• C

• D

• E

Tags

NGSS.MS-LS2-3

What is A?

• Biosphere

• Geosphere

• Hydrosphere

• Atmosphere

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is B?

• Biosphere

• Geosphere

• Hydrosphere

• Atmosphere

What is C?

• Biosphere

• Geosphere

• Hydrosphere

• Atmosphere

What is D?

• Biosphere

• Geosphere

• Hydrosphere

• Atmosphere

Tags

NGSS.MS-ESS2-4

Human activities that do not cause an imbalance in the water cycle and the carbon cycle are considered eco-friendly. The activities that cause an imbalance in the cycles are considered not eco-friendly. Classify the activities as being eco-friendly.

• recycling

• burning fossil fuels

• using fewer disposables

• growing trees

• burying organic matter

Tags

NGSS.MS-LS1-6

Human activities that do not cause an imbalance in the water cycle and the carbon cycle are considered eco-friendly. The activities that cause an imbalance in the cycles are considered not eco-friendly. Classify the activities as being non eco-friendly.

• cutting trees

• burning fossil fuels

• using fewer disposables

• growing trees

• burying organic matter

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS3-4

In an ecosystem, marsh snails feed on phytoplankton and painted turtles feed on marsh snails. Pollution has resulted in the depletion of phytoplankton.

As phytoplankton were destroyed, the population of marsh snails would most likely

• increase

• decrease

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

In an ecosystem, marsh snails feed on phytoplankton and painted turtles feed on marsh snails. Pollution has resulted in the depletion of phytoplankton.

if the population of of marsh snail decrease due to decrease in phytoplankton, then the population of painted turtles would mostly likely

• increase

• decrease

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4