What is the difference between a total and partial solar eclipse

A lunar eclipse occurs when the Earth passes between the Moon and the Sun, and the Earth's shadow obscures the moon or a portion of it. A solar eclipse occurs when the Moon passes between the Earth and the Sun, blocking all or a portion of the Sun. An eclipse can be total, partial, or annular

A total solar eclipse is when the sun is fully blocked out by the moon in the climax and a partial is when the moon doesn't cover the sun completely.

Answer (d) may increase or decrease porosity through dissolution or deposition;