PROJECT TRISKO 2.0 - Pre Test in Earth Sciences

The Earth's only entirely liquid layer is the ________.

• crust

• mantle

• outer core

• inner core

Answer explanation

The outer core is the Earth's only entirely liquid layer. It is composed primarily of liquid Nickel (Ni) and Iron (Fe).

The most abundant gas in the Earth's atmosphere is ________.

• oxygen

• nitrogen

• carbon dioxide

• hydrogen

Answer explanation

Nitrogen is the most abundant gas in the atmosphere as it makes up 78.084% of it.

What two (2) factors are required for any rock to transform into a metamorphic rock?

• moisture and heat

• moisture and pressure

• heat only

• heat and pressure

Answer explanation

Intense heat and pressure transform any rock to a metamorphic rock.

Which of the following is NOT a characteristic of an intrusive igneous rock?

• tiny crystals

• forms underground

• cools slowly

• large and visible crystals

Answer explanation

An intrusive igneous rock cools slowly underground from magma, forming large, visible crystals.

Formation of tiny crystals is a characteristic of an extrusive igneous rock.

You noticed that the clouds appeared to be dark gray, and thick. It is also shapeless, towering, and stormy, indicating continuous rain, hail, and snow. What type of cloud is being described?

• cirrus clouds

• stratus clouds

• cumulus clouds

• nimbus clouds

Answer explanation

Nimbus clouds are characterized by dark, grey, featureless layers of clouds, thick enough to block out the Sun that can produce persistent rain.

What property of minerals describes how light reflects off a mineral's surface?

• effervescence

• luster

• asterism

• tenacity

Answer explanation

Luster is a mineral's property that refers to how light reflects off the mineral's surface.

Using relative dating, if Fossil A is found in a lower rock layer than Fossil B. What does this imply on the age of the fossils?

• Fossil A is older than Fossil B

• Fossil B is older than Fossil A

• Both fossils have the same age

• Relative dating is unreliable.

Answer explanation

Through the law of superposition, assuming that the rock layer was remained undisturbed, fossils on the lower layers are much older than the fossils in the newer layers.

It refers to the movement of weathered particles through wind, water, and other agents.

• Weathering

• Erosion

• Deposition

• Eruption

Answer explanation

Erosion is the movement of weathered particles through wind, water, and other agents.

It is an instrument that detects and records seismic waves caused by earthquakes.

• barometer

• rain gauge

• thermograph

• seismograph

Answer explanation

A seismograph is an instrument that detects and records seismic waves caused by earthquakes.

What is the deepest part of the ocean?

• Mt. Everest

• The Challenger Deep

• Kola Superdeep Borehole

• Point Nemo

Answer explanation

The deepest part of the ocean is the Challenger Deep found in the Mariana Trench. Its depth exceeds 10,900 meters or 7 miles.