Science 10 1st Quarter review

  Scientists believe that there is only one land named Pangaea during the Permian period, but due to continuous movement of plates it was first divided in two. What two continents appeared after Pangaea was separated?

• Panthalassa and Laurasia

• Gondwanaland and Laurasia

• Tethys and Panthalassa

• Tethys and Gondwanaland

Based on the seafloor spreading theory, which of the following is an evidence that supports this theory?

• all continents are drifting.

• ages of rocks near a ridge are older than the ones far from it.

• fossils of plants and animals are found in almost all continents.

• hot and less dense material from below the Earth's crust rises towards the surface at the mid-oceanic ridge.

How do scientists explore and study the ocean floor?

• By catching Fish

• By using the SONAR

• By the use of Satellite

• By looking at the moon

Which of the following is NOT an evidence of Continental Drift Theory?

• Coal Deposit

• Continents Edges

• Fossil

• Glacier

What fossil PLANT is found by the archeologists and scientists that become one of the evidences of continental drift theory?

• 
• 
• 
• 

Which of the following is NOT a method of heat transfer?

• Condensation

• Conduction

• Convection

• Radiation

Which of the following is NOT an example of convection?

• Boiling of water

• Filling of gas

• Burning of woods

• Handle of casserole during cooking

What is Asthenosphere?

• It is the crust

• It is the magma in the core

• It is the upper portion of the mantle

• It is found between core and mantle

In which layer of the Earth comes the source of heat in a mantle convection current?

• Crust

• Core

• Upper mantle

• lower mantle

As seen in the illustrations in the question number 7. Why are volcanoes mostly found at places where continents meet the seas

• It is where water meets land.

• It is where the oceanic plates subduct under the continental plate.

• Underneath it is a subduction zone.

• More magma is produced under the ground because of the muddy seafloor.