6th Grade: First Semester Review

Important parts of culture include: (chapter 3)

• religion

• history

• art

• government

• land size

How can rapid population growth harm the environment? Select all that apply. (chapter 3)

• The earth is drilled for more energy resources.

• Forests are cut down to make more farms.

• More people are inventing new ways to produce power.

• More factories are built, which contribute to more pollution.

Over harvesting of lumber in the western United States contributed to what major environmental problem? (Chapter 5)

• erosion

• desertification

• wildfires

• desalination

The photograph shows the Hoover Dam in Nevada. What benefits do dams like this one provide this region of the United States? Select all that apply. (Chapter 5)

• crop irrigation

• fossil fuels extraction

• hydroelectric power

• city water supply

Which of the following statements describes one effect of deforestation? (Chapter 2)

• The atmosphere is enriched with more oxygen.

• Landslides and erosion occur on deforested lands.

• Forests can be fully restored within just a few years.

• Natural habitats for animals can be easily found elsewhere.

When toxic chemicals are burned, how does it affect our environment? (Chapter 2)

• These chemicals settle on land, water, and buildings.

• These chemicals can poison plants and animals.

• These chemicals can cause chemical erosion.

• These chemicals can help purify our freshwater drinking supply.

Which industry is most associated with California’s Silicon Valley? (Chapter 5)

• computers

• aerospace

• tourism

• agriculture

Which two countries are the largest markets for exports from the United States? (Chapter 5)

• Brazil and Canada

• Mexico and Canada

• China and Canada

• Mexico and China

What are four advantages of NAFTA (USMCA)? (Chapter 5)

• Trade has tripled with the United States, Canada, and Mexico.

• Loss of US jobs to factories in Mexico.

• Greater trade increased economic output

• U.S. oil imports from Mexico cost less because NAFTA got rid of tariffs.

• NAFTA lowered prices for consumers.

What are four disadvantages of NAFTA (USMCA)? (Chapter 5)

• Loss of U.S. jobs.

• Kept wages low for American workers.

• The new factories harmed the environment of Mexico.

• NAFTA put Mexican farmers out of business.

• Rise in imports from China.