When the moon's shadow covers part of the earth it is called a. Eclipse
b. Full moon
c. New moon
d. All of the above

a. Eclipse

Explanation:

When the moon comes between the Earth and the Sun, it blocks the sunlight from reaching the Earth's surface and creates a shadow. This is called an eclipse.

Full moons and new moons are just names for different moon phases. A full moon is when the Sun's light is reflected off the entire surface of the moon which gives it a "full" appearance, while a new moon is the exact opposite and the moon will be completely dark. Neither of these cast a shadow onto the Earth.

answer: 21

step-by-step explanation:

divide 630 by 30. 30 goes into 630 21 times

the match duh

explanation: