1 / 20

EQ: What are some ways that humans can conserve natural resources?

EQ: What are some ways that humans can conserve natural resources?. Conserving Natural Resources. Vital resources in danger: Soil has become unfit for growing crops Water unhealthy to drink, cook with, wash in Air has become polluted with substances

hayden-poole
Download Presentation

EQ: What are some ways that humans can conserve natural resources?

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. EQ: What are some ways that humans can conserve natural resources?

  2. Conserving Natural Resources • Vital resources in danger: • Soil has become unfit for growing crops • Water unhealthy to drink, cook with, wash in • Air has become polluted with substances Natural resources can be kept healthy in two ways: • Conserved - saved before it turns bad • Reclaimed - made healthy again after it has turned bad

  3. Soil Conservation • Methods used to keep topsoil from being swept away by flowing water and wind. • Rolls of trees, called windbreaks, are planted along the edge of farmland to block winds. • In terracing, farmers cut level areas into the sides of mountains to block or slow down the downward rushing water.

  4. Soil Conservation • To make land healthy again, people can plant grasses that can live through a drought. • Grasses will die and decay and add nutrients to the soil. • The roots of the living grasses hold the soil in place.

  5. Water Conservation • The main threats to our supply of healthy water are pollution and waste. • To conserve water: • Replace old showerheads and faucets with water saving showerheads and faucets • Replace old toilets with water-saving toilets that uses less water per flush • Turn off the faucet while you brush your teeth. • Turn on the dishwasher only when you have a full load of dishes.

  6. Water Conservation • Water pollution comes from different sources: • Sewage treatment plants should not pour untreated sewage into bodies of water. • Factories and mines must be prevented from dumping harmful chemicals into bodies of water. • Methods must be used to prevent fertilizers from washing off of farmlands into bodies of water.

  7. Air Conservation • Air is made up of 78% nitrogen, 21% oxygen, and 1% other gases. • We need oxygen to live. • Human activities put gases into the air that can harm you. • Air pollution describes air that holds harmful gases. • Harmful substances in air, water, or soil are called pollutants.

  8. Air Conservation • Two sources of air pollutants: • vehicles that burn gasoline or oil • Industries whose smokestacks pour chemicals and bits of dirt into the air Passed laws to protect air from pollution. Put filters on smokestacks.

  9. Air Conservation Laws require car manufactures to put in exhaust systems. State laws require the use of fuels in vehicles that lessen the amounts of pollutants that enter the air. States require steps to reduce harmful vehicle emissions.

  10. Terracing is a method used to conserve • water. • air. • soil. • fuel.

  11. A windbreak conserves • wind. • soil. • water. • air.

  12. For a family of four, what indoor use of water consumes the MOST water per day? • Washing dishes • Doing laundry • Drinking and cooking • Flushing toilets

  13. What would reduce automobile air pollution the MOST? • Putting filters on car exhaust systems • Driving fewer miles • Switching to cars that run on electricity • Driving cars that use less fuel

  14. How is farming MOST LIKELY to produce water pollution? • A. Fertilizers may enter bodies of water. • B. Foods may enter bodies of water. • C. Soil may enter bodies of water. • D. Gases may enter bodies of water.

  15. Summary of Plate Tectonics earthquakes occur creates mtns Folds two plates slide past each other two plates move apart Faults convergent divergent transform Plate Boundaries two plates pushed together

  16. Quick Check When two plates converge, one plate is usually forced to slide under the other. Oceanic plates are more dense than continental plates. If an oceanic plate collides with a continental plate, what will be the likely result? A. The continental plate will slide under the oceanic plate, generating an oceanic trench. B. The oceanic plate will slide under the continental plate, generating an oceanic trench. C. The continental plate will slide under the oceanic plate, generating an earthquake. D. The oceanic plate will slide under the continental plate, generating an earthquake.

  17. Quick Check If two plates meet at a convergent boundary and do not form a subduction zone, they may A. fold. B. fault. C. weather. D. erupt.

  18. Quick Check • The process of seafloor spreading occurs at what kind of plate boundary? A. divergent B. convergent C. transform D. at both convergent and transform boundaries

  19. Quick Check Where does magma come from? • A. the inner core • B. the outer core • C. the mantle • D. the lithosphere

  20. Quick Check The ancient supercontinent, Pangea, once contained A. all of the Earth’s tectonic plates. B. all of Earth’s crust. C. all of Earth’s continental crust. D. all of Earth’s oceanic crust

More Related