Restoring the environment after mining

Why did early cities grow near fertile soil?

The soil grew enough food to support many people

What is a benefit of recycling?

Increases the amount of limited resources

How does a resource go from being renewable to non-renewable?

Now people use the resource faster than it is recreated

How could you effectively avoid overfishing in the Go Fish activity?

take 2 fish each to avoid starvation

Crush rock, separate metal, remove impurities, store waste

Is water renewable or not in California?

Depends on our water use and weather

Find the con about mining in Bristol Bay

Small amounts of pollution destroy salmon's sense of smell

Tectonic plates are always moving

Yes, just slowly like a couple centimeters per year

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Earth Science Review

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questions for 7th grade science

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Questions 27

Answers

1
How is recycling limited?
None of the above
We cannot recycle everything
It does not feed the poor
It is limited because it smells
2
What is reclamation?
Mining companies way of renting land to mine
Restoring the environment after mining
Environmental problems from global warming
Taking the valuable minerals out of ore
3
What is evidence of plate tectonics
Magnetic striping on the ocean floor
All of the above
South America and Africa fit together like a puzzle
Tropical plant fossils on Antarctica
4
Which of the following is NOT a natural resource?
Plastic
Water
Granite Rock
Wind
5
A common problem with shared resources is using up the resource like with...
All of the above
Fish
Trees
Clean air
6
Why did early cities grow near fertile soil?
The ground was easy to dig for housing
The soil grew enough food to support many people
Not true, we moved fertile soil near cities
None of the above
7
What are some pros to mining in Bristol Bay?
Jobs for Alaskans
Rural electricity projects can be completed
Copper makes the Internet possible
All of the above
8
What is a benefit of recycling?
Increases the amount of limited resources
It is popular, so you look cool recycling
It takes time to sort items
It increases pollution
9
Why are some deposits of ore more expensive to mine?
It costs more $ to mine deeper in the Earth
Some land is more expensive than others
More $ is spent if more reclamation is needed
All of the above
10
Created by weathering and then hardening
Igneous Rock
Sedimentary Rock
Metamorphic Rock
All rock
11
This tectonic boundary is most likely to create mountains
Convergent
Divergent
Subduction Zone
Transform
12
How does a resource go from being renewable to non-renewable?
There is a famine or drought
All of the above
Now people use the resource faster than it is recreated
The resource becomes popular or fashionable
13
This rock type is caused by intense heat and pressure over time under the Earth
Igneous
Metamorphic
All of the above
Sedimentary
14
This test shows the color of a mineral when it is rubbed into a fine powder
Hardness
Clevage
Streak
Crystal
15
How could you effectively avoid overfishing in the Go Fish activity?
Starve
take 3 fish to make a profit
take 2 fish each to avoid starvation
Complain LOUDLY
16
I threw away the jeans my mom bought and bought a cool pair of skinny jeans. This is...
Planned obsolescence
Reclamation
Renewable cotton, so no need to recycle
Perceived obsolescence
17
Why are fossil fuels used so much if they are heavy polluters?
We know how to extract them
They are reliable
They are cheap
All of the above
18
How is copper mined?
Crush rock, separate metal, remove impurities, store waste
Explosion and remove metal
Find metal, drill, sell metal, enjoy profit
Make a powder from rock, find metal, return waste to hole
19
The Bay Area is at risk for what natural hazard?
Tornadoes
Volcanoes
Hurricanes
Drought
20
Is water renewable or not in California?
Depends on if we have a drought
Renewable
Non-renewable
Depends on our water use and weather
21
Can any type of rock become igneous over time?
It depends on if you are in a subduction zone
Only sedimentary rock becomes igneous
No
Yes
22
Which is a form of alternative energy whose creation depends on the weather
Nuclear
All of the above
Geothermal
Solar
23
Which is NOT a natural hazard?
Global warming
Flood
Hurricane
Tsunami
24
The cause of convection currents
Reclamation
Earthquakes
Equal molecule density
Unequal heating
25
Find the con about mining in Bristol Bay
We can easily pump polluted water out of spawning grounds
The locals will be too busy with new jobs
Technology will improve tailings dams to hold waste forever
Small amounts of pollution destroy salmon's sense of smell
26
Tectonic plates are always moving
No, we would feel earthquakes constantly
Yes, just slowly like a couple centimeters per year
Yes, but only when we have earthquakes
No, this theory was never supported with evidence
27
In this stage of the materials economy we shop, shop, shop!
Production
Distribution
Extraction
Disposal

Earth Science Review Flashcards | StudBud