Unit 7 Study Guide

Front

Which human activity helps protect human resources?

Back

recycling aluminum cans

Answer explanation

Recycling aluminum cans helps protect human resources by conserving raw materials and energy, reducing waste, and promoting sustainable practices. This choice directly supports environmental protection, unlike the other options.

Front

How do landfill liners and covers help to protect the environment?

Back

By keeping toxic materials out of the soil and waterways.

Answer explanation

The liners and covers in landfills help protect the environment by keeping toxic materials out of the soil and waterways, preventing contamination and preserving ecosystem health.

Front

Building highways impacts the environment. One national park in Canada is trying to lessen the impact. Park employees built 8-foot-tall fences along the highway. They also built 22 tunnels under the highway and large land bridges over the highway. How are these changes likely to help the environment?

Back

Animals will be able to move freely without being struck by cars.

Answer explanation

The changes, like tunnels and land bridges, allow animals to cross the highway safely, reducing the risk of being struck by cars. This promotes wildlife movement and helps maintain ecological balance.

Front

Which source is the most reliable for determining which objects to put in composting and recycling bins?

Back

Use brochures provided by the city.

Answer explanation

The brochures provided by the city are the most reliable source for determining what to compost and recycle, as they contain specific guidelines tailored to the local program.

Front

Some cities are using sediments and small rocks instead of pavement. In which way does this most help the environment?

Back

reduces flooding

Answer explanation

Using sediments and small rocks allows water to soak into the ground, which helps reduce flooding by allowing natural drainage. This is beneficial for the environment compared to traditional pavement.

Front

What topic is Sampson likely researching based on these books and articles: Planting on Your Roof and Walls; Ecosystems Up High; How to Construct and Maintain a Sturdy Roof; Living Houses Help the Environment?

Back

how to use green roofs to cool the air and reduce carbon dioxide pollution

Answer explanation

Sampson's readings focus on green roofs and their environmental benefits, particularly in cooling air and reducing carbon dioxide pollution, making this the most relevant topic he is researching.

Front

The pictures show human activities that use renewable or nonrenewable resources. Select all pictures that show nonrenewable resource use. Options: Picture A: a row of wind turbines generating electricity Picture B: large machines mining rock and soil from the ground Picture C: a person cutting a tree with a saw

Back

Picture B: large machines mining rock and soil from the ground

Answer explanation

Picture B shows large machines mining rock and soil, which are nonrenewable resources. In contrast, Picture A features wind turbines (renewable) and Picture C involves cutting a tree (renewable if managed sustainably).

Front

The picture shows a farm that uses chemicals on the crops. What does box 1 in the picture represent?

Back

Chemicals pollute streams.

Answer explanation

Chemicals used on crops can run off into nearby streams, leading to pollution. This negatively impacts water quality and aquatic life, making 'Chemicals pollute streams' the correct choice.

Front

What does box 2 in the picture represent on a farm that uses chemicals on crops?

Back

The chemicals flow downstream.

Answer explanation

The correct choice is 'The chemicals flow downstream' because using chemicals on crops can lead to runoff, causing them to enter nearby water sources rather than remaining on the farm.

Front

The picture shows a farm that uses chemicals on the crops. What does box 3 in the picture represent?

Back

Farmers plant trees to absorb some chemicals.

Answer explanation

Farmers plant trees to absorb some chemicals, helping to reduce chemical runoff and improve soil health. This choice directly addresses the environmental impact of using chemicals on crops.