Earth Science: Origins of the Universe / Rocks and Minerals, science homework help

Question 1 (1 point)

The Mid-Atlantic Ridge is an example of which type of plate boundary?

divergent

convergent

transform

strike-slip

Question 2 (1 point)

If the hanging wall moves down relative to the footwall, it is called which kind of fault?

reverse

normal

transform

strike-slip

Question 3 (1 point)

Which of the following most effectively outline the edges of the lithospheric plates?

lines of active stratovolcanoes

lines of earthquake epicenters

margins of the continental shelves

the locations of deep mantle hot spots

Question 4 (1 point)

What do the volatile gases in magma provide in an eruption?

calming effect

force

liquid

nothing

Question 5 (1 point)

Which of the following is an example of an active, continent-continent collision?

the Arabian Peninsula slamming into North Africa under the Red Sea

the northern movement of Baja California and a sliver of western California toward the Hawaiian Islands

the northward movement of India into Eurasia

the westward movement of the South American plate over the Nazca plate

Question 6 (1 point)

Mount St. Helens and the other Cascade volcanoes are which of the following?

a row of young, active shield volcanoes built as western North America moved over a hot spot deep in the mantle

old, deeply-eroded stratovolcanoes built before the Pacific Ocean existed

old, deeply-eroded, basaltic shield volcanoes built when western North America was over the present-day site of the Hawaiian hot spot

young, active stratovolcanoes built on a continental margin above a sinking slab of oceanic lithosphere

Question 7 (1 point)

The point on the surface directly above the focus of the earthquake is called what?

epicenter

fault scarp

surface wave

inertial point

Question 8 (1 point)

Early results of the Deep Sea Drilling Project clearly supported the conclusion that the ocean floor is the oldest rock on Earth.

Question 9 (1 point)

How old is the universe?

13.7 billion years

4.6 billion years

3.8 billion years

4000 years

Question 10 (1 point)

The continental drift hypothesis was rejected primarily because Alfred Wegener could not do what?

disprove competing theories that were more accepted by scientists

find geologic similarities on different continents

identify a mechanism capable of moving continents

all of these

Question 1 (1 point)

Which of the following is an igneous rock?

limestone

rhyolite

shale

slate

Question 2 (1 point)

Which change may occur during metamorphism?

Certain minerals may recrystallize.

Crystals may grow larger.

The rock becomes more compact.

all of these

Question 3 (1 point)

Detrital sedimentary rocks are classified (named) primarily based on which characteristic?

color

composition

particle size

all of these

Question 4 (1 point)

As the rate of cooling increases, the sizes of crystals that form do what?

decrease

increase

are not affected

none of these

Question 5 (1 point)

Which statement best defines the difference between a mineral and a rock?

A mineral is defined by the rock in which it is found.

Rocks always contain the same minerals in the same concentrations.

Minerals have a wide variety of forms and characteristics.

Rocks are aggregates of minerals.

Question 6 (1 point)

Which rock is a popular building stone?

andesite

basalt

diorite

granite

Question 7 (1 point)

The resistance of a mineral to abrasion is known as which property?

cleavage

hardness

luster

streak

Question 8 (1 point)

Which mineral group exhibits a sheet-like silicate structure?

carbonates

feldspars

micas

pyroxenes

Question 9 (1 point)

The strong tendency of certain minerals to break along smooth, parallel planes is known by which term?

cleavage

cracking luster

crystal form

streak

Question 10 (1 point)

What can be said about sedimentary rocks?

hold important clues about the Earth’s history

may be economically important

may contain fossils

all of these

"Get 15% discount on your first 3 orders with us"
Use the following coupon
FIRST15

Order Now