Question

1. how does tectonic activity contribute to earths internal energy sources? by absorbing solar radiation. by influencing the moons gravitational pull. by releasing energy in the form of earthquakes and volcanic eruptions. by generating geothermal energy.

Explanation:

• Option "By absorbing solar radiation" is incorrect as solar radiation is related to Earth's external energy (from the Sun), not internal energy from tectonic activity.
• Option "By influencing the Moon’s gravitational pull" is incorrect as the Moon’s gravitational pull mainly affects tides and is not a source of Earth’s internal energy from tectonics.
• Option "By releasing energy in the form of earthquakes and volcanic eruptions" is correct. Tectonic activity (movement of tectonic plates) involves the release of energy stored in the Earth’s crust and mantle, which is manifested as earthquakes and volcanic eruptions, contributing to Earth’s internal energy sources.
• Option "By generating geothermal energy" is a bit misleading. Geothermal energy is a result of Earth’s internal heat (including from radioactive decay and residual heat from Earth’s formation), and tectonic activity can facilitate the movement of this heat, but the primary way tectonic activity contributes to internal energy sources is through releasing energy via earthquakes/volcanic eruptions, not "generating" geothermal energy (geothermal energy is generated by processes like radioactive decay, etc., and tectonics helps transfer/release it). So the best answer is the third option.

Answer:

C. By releasing energy in the form of earthquakes and volcanic eruptions. (Note: Assuming the options are labeled A, B, C, D with A being "By absorbing solar radiation", B "By influencing the Moon’s gravitational pull", C "By releasing energy in the form of earthquakes and volcanic eruptions", D "By generating geothermal energy" as per typical multiple - choice formatting. If the original labels were different, adjust the label but the text remains the same.)