Grade 8

This is the boundary between the lower mantle and the outer mantle.

• Mohorovicic discontinuity

• Almand discontinuity

• Guttenberg discontinuity

• Lehmann discontinuity

This is the outermost layer of Earth, this is also the part where we and other organisms live.

• Mantle

• Outer core

• Crust

• Inner core

The following are not an effect of earthquakes EXCEPT?

• Flash flood

• Storm Surge

• Rain

• Tsunami

They are also known as dirty snowballs and are made up of frozen gasses, rock and dust.

• Comets

• Asteroids

•  Meteorites

• Meteor

 ______ is fracture found between two blocks of rock on Earth’s crust where compression and tension forces cause displacement of the rocks.

• Fault

•  Frugal

• Lines

• Epicenter

 Nano, a seismologist , wants to know the estimate of the relative size or strength of an earthquake. What does he want to measure?

• Intensity

• Earthquake

• Magnitude

• Faults

The Ritcher scale was developed by ________________ was used to measure the magnitude of an earthquake.

• Charles Ritcher

• Dominique Ritcher

• Isaac Ritcher

• Antony Ritche

According to NASA there are 930 664 identified asteroids in the solar system. NASA stands for?

• National Aeronautics and Solar Administration

• Nation Astronomical and Space Administration

• National Administration and Space Aeronautics

• National Aeronautics and Space Administration

Asteroids are classified according to their composition. The following are classification of asteroids according to composition EXCEPT?

• C-Type

• Near-Earth asteroids

• M-Type

• S-Type

What is this classification of tropical cyclones that has a wind speed of 118-220 km/h?

• Super Typhoon

• Tropical Depression

• Severe Tropical Storm

• Typhoon