Question

1. Convection currents are the heating and cooling cycles of

(gases, magma) in the mantle's asthenosphere.

2. A boundary is the (edge, middle) of a tectonic plate where
it meets other plates.

3. A divergent boundary forms when two tectonic plates
(collide, separate).

4. A convergent boundary forms when two tectonic plates
(explode, collide).

5. A transform boundary forms when two tectonic plates slide
(into, past) one another.
********
True/False. Decide if each statement is true or false, and write true or false
in the blank.

6. Magma pushes tectonic plates along as it cycles
through the mantle.

7. Tectonic plates only move by sliding past one another.

8. If two oceanic crust plates collide, one is subducted
below the other.

9. When tectonic plates slide past one another, they
grind and may cause earthquakes.

10. Tectonic plates move quickly, so boundaries take
only a few years to form.

Answer 1

Answer: Convection currents are the heating and cooling cycles of

(gases, magma) in the mantle's asthenosphere.

Explanation: Convection currents are the heating and cooling cycles of

magma in the mantle's asthenosphere.

1. A boundary is the edge of a tectonic plate where

it meets other plates.

2. A divergent boundary forms when two tectonic plates

separate.

3. A convergent boundary forms when two tectonic plates

collide.

4. A transform boundary forms when two tectonic plates slide

into one another.

********

True/False. Decide if each statement is true or false, and write true or false

in the blank.

6. Magma pushes tectonic plates along as it cycles

through the mantle. True

7. Tectonic plates only move by sliding past one another.

True

8. If two oceanic crust plates collide, one is subducted

below the other. False

9. When tectonic plates slide past one another, they

grind and may cause earthquakes. True

10. Tectonic plates move quickly, so boundaries take

only a few years to form. False