Human Impact

Increased human populations can lead to the depletion of of resources within communities. Compared to other communities, which of these resources is MOST likely to be depleted in desert communities?

• gasoline

• water

• oxygen

• minerals

Tags

NGSS.MS-ESS3-4

It is estimated that half of the 10 million species of organisms on the planet live in the tropical rain forests. Deforestation of the rain forest causes the extinction of as many as 50,000 species per year. Clearing tropical rain forests causes the extinction of many species because

• plants and animals are exposed to high levels of carbon dioxide.

• pollution caused by humans increases the greenhouse effect.

• many unique habitats and ecosystems are being completely destroyed.

• destruction of the rainforest contributes to the depletion of the ozone.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Wastes produced by agriculture, households, industry, mining, and other human activities can end up in ______________.

• groundwater

• streams and rivers

• oceans

• All of these choices

Tags

NGSS.MS-ESS3-3

NGSS.MS-ESS3-4

Which of the following human activities is LEAST likely to affect watersheds?

• Flying in an airplane

• Cutting down trees

• Fertilizing lawns

• Reading a book

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Pollutants from a factory that enter the water in a watershed will have a negative effect on which of the following?

• Local pond life

• Rainfall rates

• Direction of river flow

• Available space for crops

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

A neighborhood in a small Texas town had to be evacuated because the houses were sinking due to a problem in the aquifer. What is the most likely cause of this problem?

• Heavy rains caused oversaturation of soil foundations.

• Overbuilding in the area polluted the ground water.

• Runoff from fertilized land created a dead zone.

• Excessive removal of water weakened the ground.

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS3-4

The use of pesticides and fertilizers is carefully monitored because of the effect they can have on the environment. Which of the following is a possible negative effect of the use of these chemical on the environment?

• These chemicals are expensive to produce.

• Runoff carries these chemicals into lakes and streams.

• Storage space for these chemicals is limited.

• Theses chemicals cannot be purchased in large bulk.

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Rapid growth of algae in a pond is often the result of -

• loss of habitat due to commercial building.

• flooding that causes water levels to rise.

• excess nutrients from fertilizer runoff.

• clogged river tributaries entering a lake.

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS1-5

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Select the TWO statements that are true.

• Resource use by humans will be higher in 20 years than it is now.

• Resource use by humans was lower in 1804 than it was in 1960.

• Resource use by humans has gone up and down over the years.

• Resource use by humans is much lower now than it was 200 years ago.

Tags

NGSS.MS-ESS3-4

As the world's population grows, the need for Earth's natural resources will grow too.

• True

• False

Tags

NGSS.MS-ESS3-4