AnswersGA-GSE Earth Systems BEarth's Climate History

Earth's Climate History Answers

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1
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In what type of climate do trees produce narrower rings?

A
cool and dry
B
warm and wet
C
cool and wet
D
warm and dry
2
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Pollen grains help scientists

A
identify plants and make assumptions on past climate conditions.
B
understand tree growth and make assumptions on past climate conditions.
C
understand how Earth was shaped and make assumptions on past climate conditions.
D
identify major ice ages and make assumptions on past climate conditions.
3

What is a fossil?

A
the remains of an animal or plant preserved within a layer of rock
B
a large body of compacted ice formed over thousands of years
C
the energy radiated from the Sun
D
a change in the structure of Earth's surface
4

What do scientists study to reconstruct past climate conditions?

A
tree branches, pollen grains, and rain water
B
pollen grains, tree rings, and fossils
C
rain water, tree rings, and fossils
D
fossils, pollen grains, and tree branches
5

What is one cause of long-lasting climate change?

A
glacial deposits
B
Earth’s elliptical orbit
C
Earth’s rotation
D
the Sun’s elliptical orbit
6

What do glaciers deposit that helps scientists study ancient climates?

A
plants that produce pollen grains
B
rocks formed from lava
C
sediment that contains fossils
D
animals that migrate
7

What most likely caused the ice ages?

A
the size of tree rings and the amount of pollen grains
B
solar flares and gassy ejections from the Sun
C
the tilt of the Earth’s axis and the shape of its orbit
D
the temperatures of the Sun and moon
8

Mt. Pinatubo, a volcano in the Philippines, erupted in 1991. The eruption resulted in the cooling of Earth’s surface for two years.What can you deduce from the information given?

A
Solar energy seeped through the atmosphere.
B
The eruption caused sunspot activity to increase.
C
The volcano released a lot of sulfur dioxide and ash.
D
Greenhouse gases caused the cooling of Earth’s surface.
9

Which played a major role in altering wind patterns and ocean currents?

A
volcanic eruptions
B
ice ages
C
movement of continents
D
solar flares
10

How do scientists study pollen grains to help them understand climate change?

A
by analyzing and making inferences about them
B
by observing and listing facts about them
C
by studying and reading more about them
D
by writing hypothesis about them

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