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1-Examine the words and/or phrases below and determine the relationship among the majority of words/phrases. Choose the option that does not fit the...

1-Examine the words and/or phrases below and determine the relationship among the majority of words/phrases. Choose the option that does not fit the pattern.

Triassic

Oligocene

Cretaceous

Jurassic


2- What caused the planet's temperature to rise early in Earth's formation? Choose all that apply

increase in solar flares

collision of planetesimals

decay of radioactive elements

a nearby black hole

a red giant star passing near Earth


3- Water in Earth's early oceans came from ________.

dissolution of limestone which released the necessary elements to form water

Earth's interior, rising up through fissures in the crust

rainfall after Earth cooled sufficiently to allow for condensation

photosynthesis by plants on land


4- Examine the words and/or phrases below and determine the relationship among the majority of words/phrases. Choose the option that does not fit the pattern.

carbon dioxide

methane

ammonia

water


5- Why was rainwater highly acidic early in Earth's history?

Volcanic eruptions released large quantities of sulfur dioxide into the atmosphere, which combined with water to form acid that fell as acid rain.

Water that evaporated from Earth's surface was highly acidic. When the water evaporated into the atmosphere, it brought the acidic compounds into the atmosphere with it.

Almost all materials on Earth at this time were at least mildly acidic.

Rain became acidic from various space debris that occasionally fell to Earth.

Evaporated water in the atmosphere combined with carbon dioxide to form acid rain.


6-The supercontinent cycle had a profound impact on ________.

global climates

sea level

the evolution of the continents

all of the above


7- Where were the earliest silica-rich fragments of continental crust generated? Choose all that apply.

by hot spot volcanism

at subduction zones

at a lava lake

at divergent plate boundaries

by the solidification of the mantle


8- Which best describes the positions of the continents during the Mesozoic?

Gondwana and Laurasia formed.

Pangaea began to form.

The continents have not moved.

Pangaea broke apart.

formation of Rodinia

9- What difficulties had to be overcome to sustain plant life on land? Choose all that apply.

photosynthesis in air

staying upright despite gravity and wind

obtaining water

obtaining nutrients

avoiding herbivores

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