Question

assess it! part 1

1. what is the driving force of ocean currents and atmospheric movement?

a. the gravity of the sun
b. rotations of earth
c. the moon’s gravity
d. unequal heating of earth by the sun

1. if the sun doubled in size, how would earth’s convection currents change?

a. there would be no impact.
b. the ocean currents and wind currents would be less than they are now.
c. the ocean currents and wind currents would be greater than they are now.
d. ocean and wind currents are not impacted by the sun.

1. which is true about atmospheric convection currents?

a. heat is released from the oceans and land, causing wind.
b. wind is only caused by the rotation of earth.
c. wind is caused by the polar ice caps
d. wind is caused by the gravity of planets in our solar system.

Explanation:

1. Ocean and atmospheric movements are driven by the Sun's uneven heating of Earth's surface, which creates temperature and pressure differences that drive convection, winds, and ocean currents.
2. A larger Sun would emit more solar radiation, increasing the temperature differences on Earth, which would strengthen both ocean and wind convection currents.
3. Atmospheric convection currents (which drive wind) form because heat is released from oceans and land, warming air and causing it to rise, creating pressure differences that generate wind.

Answer:

1. D. Unequal heating of Earth by the Sun
2. C. The ocean currents and wind currents would be greater than they are now.
3. A. Heat is released from the oceans and land, causing wind.