A Life On Our Planet - Part 2

In 1960, David Attenborough first encountered the Serengeti horde of 1.75 million. What does the name of their habitat, "Serengeti", mean?

• Neverending Desert

• Endless Plains

• Lush Rainforest

• Great Lake

• Wildebeest World

Before the invention of agriculture and farming, humans relied on the following to get food:

• McDonalds

• Hunting other animals

• Gathering natural produce like fruits, nuts and vegetables

• Humans ate grass just like the cows

By 1978, the remaining wilderness on earth had decreased from 68% to

• 40%

• 50%

• 55%

• 60%

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NGSS.MS-ESS3-4

Which terrestrial biome has the richest biodiversity?

• Shrubland

• Tundra

• Desert

• Rainforests

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NGSS.MS-LS2-5

Rainforests once covered 14% of the earth's land surface; now they cover a mere 6% and experts estimate that the last remaining rainforests could be consumed in less than 40 years. Humans cut down trees to

• use for raw material.

• clear space for farming.

• create space to build infrastructure (cities, roads etc).

• create space for fossil fuel extraction.

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NGSS.MS-ESS3-4

NGSS.MS-LS2-4

Our climate didn't begin to deviate from its usual temperature fluctuations until the 1990s. What was the reason for this?

• The oceans had been absorbing the excess heat.

• Levels of carbon in the atmosphere were safe before the 1970s.

• The hole in the ozone layer caused some Antarctic ice to melt.

• Feedback loops were triggered in the 1980s.

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NGSS.MS-ESS3-5

Large fish in the ocean have an important role to play in the ecosystem. They __________

• eat other fish.

• become our dinner.

• reproduce.

• recycle nutrients in the water.

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Algae are small organisms which live on the coral. This relationship is an example of

• symbiosis

• competition

• parasitism

• predation

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NGSS.MS-LS2-2

Higher ocean temperatures have caused an _________ in coral bleaching.

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NGSS.MS-LS2-4

NGSS.MS-LS2-5

Which one of these events comes FIRST in the process of global warming?

• Loss of ice caps quickens the rate of the Earth's warming.

• Sea levels rise and the arctic ice caps begin to melt.

• Humans start deforestation, burn fossil fuels and overfish the ocean.

• Too much carbon in the atmosphere traps heat from the sun which then begins to warm the planet.

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NGSS.MS-ESS3-4

NGSS.MS-ESS3-5