Earth Science Final Exam 23

Solar radiation is greatest in what region of Earth?

• Polar

• Temperate

• Equatorial

• Oceans

Igneous rocks are formed by:

• Magma and lava as it cools and solidifies

• Existing rocks being broken down into sediments

• Existing rocks being changed by heat and pressure

• Shells and skeletal remains settling to the ocean floor

Cleavage and fracture both describe the way a mineral _______.

• Shines

• Breaks

• Reflects light

• Scratches

The color of a mineral in its powdered form is known as its:

• Hardness

• Cleavage

• Streak

• Transparency

The most abundant minerals in the Earth's crust are compounds rich in silicon and oxygen known as:

• Sillicates

• Calcium Carbonate

• Oxides

• Sulfates

Which of the following is the atmospheric layer closest to the Earth's surface?

• Mesosphere

• Stratosphere

• Troposphere

• Thermosphere

What is the temperature trend in the troposphere?

• Increases with altitude

• Decreases with altitude

• Fluctuates with global winds

• Depends on the position of the sun

The most dangerous type of thunderstorm, that most often forms tornadoes, is called:

• Single cell

• Multi cell

• Supercell

• Derecho

Tornadoes are rated with what scale?

• Category scale

• Enhanced Fujita Scale

• Richter Scale

• Moh's Hardness Scale

A Tropical Depression is a storm with wind speeds:

• Greater than 39 mph

• Greater than 74 mph

• Less than 39 mph

• Less than 59 mph