Question 1

The earth is composed of 3 layers: crust, mantle and core. In which layer do convection currents happen that makes the tectonic plates move?

Accepted Answer

mantle

Answer

inner core

Answer

crust

Answer

outer core

Question 2

What causes the metals in the inner core to be squeezed tight?

Accepted Answer

great temperature and pressure

Answer

location

Answer

seismic waves

Answer

thickness

Question 3

What is PLATE TECTONIC THEORY?

Accepted Answer

Plate tectonics is the theory that Earth's outer shell is divided into several plates that glide over the mantle, the rocky inner layer above the core.

Answer

Plate tectonics is the theory that Earth changes its shape due to rapid rotation

Answer

Plate tectonics is the theory that Earth's layer are composed of solid and liquid rocks.

Answer

Plate tectonics is the theory that explains the occurrence of earthquakes and volcanoes

Question 4

What will happen if a carbon dioxide fire extinguisher has a low pressure?

Accepted Answer

the carbon dioxide will not move fast

Answer

the carbon dioxide will not expand

Answer

the carbon dioxide will not decrease its temperature

Answer

the carbon dioxide will not increase its temperature

Question 5

Which of the following heavenly bodies produce its own light?

Accepted Answer

stars

Answer

moon

Answer

planet

Answer

comets and asteroids

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