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Seventh Grade (Grade 7) Conservation and Biodiversity Questions

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Grade 7 Conservation and Biodiversity
The number and variety of different species in a given area is                .
  1. biodiversity
  2. community
  3. biotic factors
  4. habitat
Grade 7 Conservation and Biodiversity
A species that dies out is
  1. mutated.
  2. varied.
  3. adapted.
  4. extinct.
Grade 7 Conservation and Biodiversity
What does the one "P" stand for as one of the main causes of biodiversity loss?
  1. pollution
  2. predator
  3. prey
  4. permafrost
Grade 7 Conservation and Biodiversity
What does the "H" stand for as one of the main causes of biodiversity loss?
  1. hydrosphere
  2. habitat loss and fragmentation
  3. hibernation
  4. humidity
Grade 7 Conservation and Biodiversity
How do laws help endangered animals?
  1. Laws protect animals' habitats.
  2. Laws prevent people from hunting endangered animals.
  3. Laws prevent pollution of water and air.
  4. All of the above
Grade 7 Conservation and Biodiversity
Which is NOT a threat to the rainforest?
  1. cutting down trees for paper
  2. rainforest reaching carrying capacity
  3. cattle grazing activities
  4. construction of hydroelectric dams
Grade 7 Conservation and Biodiversity
Which effect of drought is likely to lead to the extinction of a species of grazing animals?
  1. reduced prey populations
  2. increased volcanic activity
  3. decreased plant growth
  4. increased predator populations
Grade 7 Conservation and Biodiversity
What does the "O" stand for as one of the main causes of biodiversity loss?
  1. overgrazing
  2. overconsumption
  3. ozone depletion
  4. O Horizon
Grade 7 Conservation and Biodiversity
What problems may be caused by moving beavers into the wetlands?
  1. Beavers may kill all of the plants providing oxygen.
  2. Beavers may destroy underground pipes and farmland.
  3. Beavers may flood homes.
  4. both b and c
Grade 7 Conservation and Biodiversity
How do scientists think that beavers can help stop droughts in California?
  1. They can drink all the river water.
  2. Their large bodies can shield the sun, so water doesn't evaporate.
  3. They can control the population of water plants, which causes droughts.
  4. They can build dams, which can help streams flow.
Grade 7 Conservation and Biodiversity
A leachate is a leak from a landfill that can contaminate groundwater.
  1. True
  2. False
Grade 7 Conservation and Biodiversity
Land renewal is when an area of land is restored for more productivity.
  1. True
  2. False
Grade 7 Conservation and Biodiversity
Why are people suddenly becoming interested in beavers?
  1. Recently, beaver soup has become popular in the West.
  2. They restore wetland habitats cheaply and easily.
  3. They can create small ponds, which people like to visit.
  4. They control the population of water plants, which soak up water.
Grade 7 Conservation and Biodiversity
What does SAV stand for?
  1. submerged aquatic vegetation
  2. salty away vegetables
  3. soaked aquatic vegetation
  4. submerged aquatic virus
Grade 7 Conservation and Biodiversity
When did California use beavers to prevent erosion?
  1. in the mid 1800s
  2. throughout the 1900s
  3. from the 1920s to the 1940s
  4. none of the above
Grade 7 Conservation and Biodiversity
What setback does incineration pose?
  1. It takes up a lot of space.
  2. It is expensive to build.
  3. It pollutes groundwater.
Grade 7 Conservation and Biodiversity
What is the correct order of how beavers create dams?
  1. drag a tree across a stream, fill the tree with rocks and mud, fill the tree with branches
  2. fill a tree with rocks, fill the tree with branches, dig a hole in a stream
  3. drag a tree across a stream, fill the tree with branches, cover the tree in rocks and mud
  4. dig a hole in a stream, fill a tree with rocks, fill the tree with branches
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