Full Moon and lunar eclipses

This task is about reading diagrams and graphs about the Moon.

Question

sun rays earth and moon
a)  How often is there a full Moon?

    • On 1 or 2 nights each year.

    • On 1 or 2 nights each month. 

    • Whenever the night sky is clear.

    • Once or twice in the Spring and Autumn only.

    • Whenever the Moon is turned towards the Earth.

Question

 
b)  The diagram shows an eclipse of the Moon.
     To a person standing on the Earth at point X, the Moon would look

    • dark, because it is in the Earth's shadow.

    • dark and light, because half the Moon is still in sunshine.

    • bright, because the Sun is shining on it while half the Earth is in shadow.

    • bright, because there would still be moonlight while half the Earth is in darkness.