1. ENVIRONMENTAL PROBLEMS AND SOLUTIONS CHAPTER 21

2. 1.ASIDE FROM GASES, NOISE, GARBAGE, AND RADIOACTIVE WASTES, WHAT IS ANOTHER KIND OF POLLUTANT? a.deforestation c.biodiversity b.chemicals d.exotic species

3. 2.WHICH OF THE FOLLOWING IS AN UNWANTED CHANGE IN THE ENVIRONMENT THAT IS CAUSED BY SUBSTANCES OR FORMS OF ENERGY? a.conservationc.nonrenewable resources b.garbaged.pollution

4. 3.WHAT IS AN ORGANISM’S HOME CALLED? a.a habitat b.an environment c.a house d.a neighborhood

5. 4.WHAT IS LOST WHEN HABITATS ARE DAMAGED OR DESTROYED? a.biodiversity b.fossil fuels c.exotic species d.pollutants

6. 5.WHAT ARE SOME FARMERS DOING TO HELP THE ENVIRONMENT? a.not planting crops b.practicing organic farming c.watering their crops more d.watering their crops less

7. 6.WHAT KINDS OF ADVANCES HAVE HELPED THE HUMAN POPULATION GROW? a.advances in transportation and electronics b.advances in TV and radio c.advances in medicine and farming d.advances in housing and education

8. 7.WHAT ORGANISMS MAKE HOMES FOR THEMSELVES IN NEW PLACES? a.predator species b.animal species c.endangered species d.exotic species

9. 8.IF RISING GLOBAL TEMPERATURES MELT THE POLAR ICECAPS, WHAT MIGHT HAPPEN TO COASTAL AREAS? a.more clouds b.deeper oceans c.more rain d.more flooding

10. 9.HOW DOES DRIVING ELECTRIC CARS RATHER THAN GAS-FUELED CARS HELP THE ENVIRONMENT? a.They use more fossil fuels than gas-fueled cars. b.They produce less energy than gas- fueled cars. c.They produce less pollution than gas- fueled cars. d.They use more gasoline than gas-fueled cars.

11. 10.WHICH OF THE FOLLOWING IS AN IMPORTANT ENVIRONMENTAL STRATEGY? a.drinking less water b.using pesticides c.adopting stray animals d.protecting habitats

12. 11.RECYCLING AND BUYING RECYCLED PRODUCTS a.developing alternative energy sources b.protecting habitats c.reducing pollution

13. 12.SAVING WETLANDS AND CUTTING DOWN FEWER TREES a.developing alternative energy sources b.protecting habitats c.reducing pollution

14. 13.USING MORE RENEWABLE ENERGY LIKE SOLAR AND WIND POWER a.developing alternative energy sources b.protecting habitats c.reducing pollution

15. 14.RECOVERING MATERIALS FROM WASTE a.reducing b.recycling c.reusing

16. 15.FIXING SOMETHING INSTEAD OF THROWING IT AWAY a.reducing b.recycling c.reusing

17. 16.USING FEWER NATURAL RESOURCES a.reducing b.recycling c.reusing