Ch 1 Studying the State of Our Earth

Which of the following is an abiotic component?

• an eagle

• a rock

• a tree

• a human

• a virus

Tags

NGSS.MS-LS2-3

Impacts of fracking include

I. contamination of ground water.

II. increased use of coal.

III. lower natural gas prices.

• I only

• I and II only

• II and III only

• I and III only

• I, II, and III

Tags

NGSS.MS-ESS3-3

NGSS.MS-ESS3-4

Which of the following is NOT true about ecosystems?

• They include biotic components.

• They can be a wide range of sizes.

• They include no human components.

• Many interactions among species occur in them.

• They include abiotic components.

Tags

NGSS.MS-LS2-3

Each of the following is an example of how humans have negatively affected the environment except

• hunting large mammals.

• conversion of arid land to agricultural use.

• the use of fire to create the Great Plains.

• slash-and-burn forest clearing.

• fertilizer additiions to lakes and rivers.

Common global-scale environmental indicators include all of the following except

• atmospheric carbon dioxide concentrations.

• human population.

• natural resource depletion

• ocean fish harvest.

• pollution in a local stream.

How many hectares of land is a 500-acre park?

(1 acre = 0.405 ha)

• 200 ha

• 250 ha

• 500 ha

• 750 ha

• 1,250 ha

How does fish and meat consumption in developed and developing countries compare?

• Developing countries consume slightly more meat and fish per capita.

• Developed countries consume slightly more meat and fish per capita.

• Developing and developed countries consume about the same amount of meat and fish per capita.

• Developing countries consume about four times more meat and fish per capita.

• Developed countries consume about four times more meat and fish per capita.

In 2011, 640,000 ha of the Amazon rainforest were cleared. Approximately how many hectares is that each hour?

• 1.2 ha

• 29 ha

• 73 ha

• 178 ha

• 1,752 ha

A person's ecological footprint is

• the land that a person lives on.

• the amount of carbon dioxide a person contributes to climate change.

• the land required to produce a person's food.

• the land needed to support all of a person's activities.

• the amount of fossil fuel a person uses.

The first step in the scientific process is

• collecting data.

• observations and questions.

• forming a hypothesis.

• disseminating findings.

• forming a theory.