Shatter cones are good evidence for scientific hypotheses Precambrian one-celled

Question

Shatter cones are good evidence for

scientific hypotheses

Precambrian one-celled fossils

meteorite impacts on Earth

divergent plate boundaries

none of the above are indicated by shatter cones

3 points   

QUESTION 2

Important events in Earth's history include:

1 - formation of the iron core

2 - conversion of the atmosphere from CO2-rich to O2-rich

3 - evolution of large plants and animals

4 - accretion of the Earth

Select the correct order of these events from oldest to youngest

3, 2, 1, 4

2, 3, 4, 1

4, 1, 2, 3

1, 3, 2, 4

4, 2, 3, 1

none of the above sequences is correct

3 points   

QUESTION 3

How old is the Earth?

13 Ma

4.6 Ga

550 Ma

2.5 Ga

47.1 Ma

3 points   

QUESTION 4

The Earth's magnetic field, generated in the core, has had a large effect on the evolution of life on Earth.

True    False

3 points   

QUESTION 5

The Earth's core, mantle and crust all have similar thicknesses.

True    False

3 points   

QUESTION 6

Quartz is a common mineral in many rocks of the crust. All grains (fragments or crystals) of quartz have the same

composition

size

structure

composition and structure

size and structure

3 points   

QUESTION 7

The common factor in the processes of differentiation of the core, sinking of crystals in magmas, rising of magmas to make volcanic arcs, and sinkinng of sand in rivers is

they all take about the same length of time

things all move about the same distance

they happened only in the first half of Earth's history

density differences

none of the above apply

3 points   

QUESTION 8

The lithosphere consists of

the mantle and crust

the upper mantle layer and the oceanic crust

both kinds of crust only

the upper mantle and both kinds of crust

the asthenosphere and atmosphere

3 points   

QUESTION 9

Oceans cover _____________ of the Earth's surface.

90%

70%

50%

30%

10%

3 points   

QUESTION 10

Asthenosphere is

upper mantle that can flow

upper mantle that is brittle

mantle in contact with the core

another name for ocean water

another name for Earth's upper atmosphere

a.

scientific hypotheses

b.

Precambrian one-celled fossils

c.

meteorite impacts on Earth

d.

divergent plate boundaries

e.

none of the above are indicated by shatter cones

Explanation / Answer

1]c, They are rare geological features that shows place around that was subjected to high stress like that due to mateorite.

2]c , Large plants and animals came very late. Accretion took place during formation of Earth i.e. very early

3]b Earth is 4.6 billion year old

4] True, magnetic field even cause DNA changes , which led to evolution of organisms.

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