Human Impact & Natural Resources

1. What are renewable resources?

• resources that are used faster than they form

• resources that can replenish themselves over time

• resources that formed over millions of years

• resources that exist only in rural areas

Answer explanation

renewable means you can keep getting them like the wind or sun

According to the graph, what material’s recycling would reduce the largest portion of America’s trash?

• Metals

• paper

• plastics

• Yard trimmings

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What is global warming

• the normal temperature fluctuations of Earth's climate cycle

• the melting of the polar ice caps

• the trend of increasing temperatures on Earth

• the changes in Earth's biosphere that affect the atmosphere

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1. What does the Endangered Species Act do?

• It provides food for endangered species.

• It protects organisms that are near extinction and their environments

• It protects populations of animals from predators

• It protects endangered plant species only.

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Which term describes the practice of managing resources so that current needs are met without harming future generations?

• species introduction

• sustainable development

• habitat fragmentation

• biomagnification

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

• Water

• Atmosphere

• Sun

• Air

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Which one of these does not add CO2 to the atmosphere?

• cooking with gas

• planting trees

• burning wood

• riding in a bus

What is deforestation?

• Clearing Earth's forests on a massive scale

• Eating too much vegetables

• Going to a forest and pulling weeds

• Clearing the five trees in my backyard

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How long does it take for fossil fuels to form?

• 100 years

• 10,000 years

• millions of years

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The process in which plants use energy from the sun to convert carbon dioxide and water into oxygen and glucose.

• respiration

• decomposition

• photosynthesis

• combustion

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