Human Impact on Earth

Multiple Choice

Most scientists believe that one factor contributing to global warming is ________.

• the changing tilt of Earth's axis

• changes in Earth's orbit around the sun

• increased sunspot activity

• the burning of fossil fuels

Multiple Choice

How do fossil fuels relate to global transportation problems?

• Fossil fuels help solve these transportation problems.

• There is no connection between fossil fuels and transportation.

• We are completely out of fossil fuels, so transportation systems are failing.

• Increasing transportation needs means we consume more fossil fuels.

Multiple Choice

Which is the most comprehensive description of how humans depend on the ocean as a resource?

• The ocean provides water for humans to drink.

• The ocean provides a way for humans to get from continent to continent.

• The ocean provides humans with valuable minerals, fish, and other resources.

• The ocean provides fish for humans to eat and use as part of other processes.

Multiple Choice

The atmosphere is:

• the gases that surround the Earth, protecting life and providing key resources.

• all of the waters of the Earth, including oceans, lakes and rivers.

• all of the ecosystems of the Earth, including living and nonliving components.

• all of the rocks, minerals and mineral resources found on Earth.

Multiple Choice

The biosphere includes:

• all regions of the Earth where life exists.

• only land areas of the Earth where life exists.

• only regions of the Earth where there is no life.

• only bodies of water where life exists.

Multiple Choice

A developer wants to build at least 50 new homes in a community. What is the best step the developer can take to help

reduce the impact this development has on the community's fresh water supply?

• The developer can build the community away from a fresh water source.

• The developer can drill wells and install toilets and faucets that use less water.

• The developer can build drainage pits to help collect water runoff.

• The developer can build smaller homes, so fewer people can move into the area.

Multiple Choice

What effect does population growth have on the supply of resources?

• Population growth increases the demand and decreases the supply of natural resources.

• Population growth decreases the demand and increases the supply of natural resources.

• Population growth decreases the demand and decreases the supply of natural resources.

• Population growth has no effect on the supply of natural resources.

Multiple Choice

Plastics are used in millions of objects we use every day. Why are plastics NOT considered natural resources?

• They are recyclable.

• They are made by people.

• They are bad for the environment.

• They are made from nonrenewable resources.

Multiple Choice

If a blue catfish is introduced and eats the large fish who eat the smaller fish, what will happen to the population of the smaller fish?

• Increase
• Decrease
• Stay the same
• No affect on smaller fish

Multiple Choice

Which gas is removed from the atmosphere during photosynthesis?

• hydrogen
• oxygen
• nitrogen
• carbon dioxide

Multiple Choice

Which of these is an example of a human activity that causes climate change?

• burning fossil fuels

• removing greenhouse gases

• using alternative energy sources

• increasing ash particles from volcanoes

Multiple Choice

In general, organic material breaks down faster than inorganic material. Which type of solid waste is likely to take the longest to break down in a landfill?

• paper plate

• glass bottle

• wood scraps

• banana peel

Multiple Choice

Which activity would be part of a logical plan to reduce each person’s resource use at home?

• The city installs a recycling center.

• People turn off all lights that are not in use.

• People drive below the speed limit to save gas.

• People burn trash instead of putting it out for pick up.

Multiple Choice

Contamination of air in the atmosphere

• Water polllution

• Air pollution

• Radioactive pollution

• Soil pollution

Multiple Choice

The process of cutting down large amounts of trees in an area is called

• Urban development

• Reintegration Foresting

• Deforestation

• None of the above

Multiple Choice

Increasing the heat of the earth is called what?

• Global Heating

• Global Economy

• Global Fitness

• Global Warming

Multiple Choice

Composting means piling up grass and leaves so they can be allowed to gradually decompose. Which describes an impact that composting has on land?

• a decrease in the amount of plastics recycled

• a decrease in the amount of land used for landfills

• a decrease in the amount of groundwater in an area

• a decrease in the amount of land used for farming

Multiple Choice

Which is NOT a positive impact on Earth's water?

• fixing a dripping faucet

• disposing of chemicals properly

• increasing fertilizer runoff

• increasing recycling

Multiple Choice

Which of the following causes air pollution?

• volcanic eruptions

• burning of fossil fuels

• forest fires

• all of the above

Multiple Choice

Which describes a way that people can minimize their impact on air pollution?

• decrease burning of oil and coal

• invent ways to remove particulate matter from the air

• decrease the size of the ozone layer

• invent ways to treat asthma

Multiple Choice

Carbon dioxide is given off when gas, oil, and coal are burned.

• True

• False

Multiple Choice

The rise in Earth’s average surface temperature during the past 10 years is often called global warming.

• True

• False

Multiple Choice

Which of the following is a way a 13 year old in America can help control greenhouse gases?

• plant trees

• recycle aluminum cans

• turn off electronics that are not in use

• all of the above

Multiple Choice

The greenhouse gas having the greatest role in human-caused global warming is

• methane
• carbon dioxide
• CFCs (chlorofluorocarbons)
• ozone

Multiple Choice

Water that drains from the land into a larger body of water is called - 

• runoff
• a watershed
• a reservoir
• an aquifer