Remedial Science Grade 7 Term 3

Substances that may cause air pollution are ….

• Dust, ash, and exhaust gas

• Carbon dioxide, microorganisms and H₂O

• Dust, water, and pesticides

• H₂O, paper and tin cans

What can humans do to reduce the effects of acid rain?

• Develop alternate energy sources (solar power, wind Energy)

• Use less energy

• Stop burning fossil fuels

• All of the answers are correct

If a farmer put out poison and poisoned all the mice, who might also be poisoned?

• Rabbit

• Toads

• Foxes

• Spiders

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NGSS.MS-LS2-2

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The study of interactions in an ecosystem.

• ecology

• scientology

• philosophy

• biology

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NGSS.MS-LS2-2

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Decomposers get their food by __________.

• making it themselves

• using dead organisms

• eating live organisms

• eating themselves

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NGSS.MS-LS2-3

What organism consumes both rabbits and birds?

• The Hawk

• The Plant

• The Wolf

• The Mushroom

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NGSS.MS-LS2-2

Sheep and kangaroos both eat the same grass in a paddock. The relationship shown in those animals is….

• competition

• parasitism

• predation

• commensalism

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NGSS.MS-LS2-1

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Identify a predation relationship found in the food web

• Rabbits & Carrots

• Birds & Grains

• Grasshoppers & Grasses

• Foxes & Mice

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NGSS.MS-LS2-2

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Organisms with the same species living in the same environment are called….

• community

• population

• ecosystem

• environment

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The Arctic animals that most influenced due to global warming is….

• tropical frog

• deer

• polar bear

• penguin

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NGSS.MS-ESS3-5

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