LO 7.12 7. Folic acid can help reduce the
risk of
a. acne.
b. neural tube defects.
c. night blindness.
d. pellagra.

i believe you meant to say air rather than hair so the answer is below ")

the dead sea, the lowest place on earth at 430 metres (1,410 ft) below sea level, has a correspondingly high typical atmospheric pressure of 1065 hpa.

i'd say that the moon rock is about 2.2 billion years old.