grade 6 4th

The thickest layer of the Earth.

• Crust

• inner core

• mantle

• outer core

What is the most abundant gas in the Earth?

• Oxygen

• argon

• carbon dioxide

• nitrogen

This refers to the amount of energy released by an earthquake

• magnitude

• hypocenter

• intensity

• focus

What kind of volcanic eruption when there are large amount of pyroclastic are ejected by the volcano into the air?

• none explosive

• explosive

• quite

• none quite

______type of earthquake happens with a strong volcanic eruption 

• tectonic

• volcanic

• tremor

• afteshock

Which precautionary measures should be done before an earthquake?

• Cover your nose with a damp cloth..

• Prepare an emergency survival kit

• Do not cross bridges if you are driving.

• Check yourself and every family member for injury.

Which government agency monitors and issues warning on volcanic activities?

• PAGASA

• DENR

• BFM

• PHIVOLCS

Why do we have day and night?

• Because the earth revolves around the sun.

• Because the earth rotates on its axis.

• Because the earth tilts on its axis.

• all of the above

is an imaginary line that goes from the North Pole to the South Pole

• orbit

• equator

• axis

• latitude

The Earths complete revolution is equivalent to______

• 23.5 days

• 224 1/3 days

• 365 1/4 days

• 88 days