geology of mars, venus and asteroid belt

Question 1

moon oldest rocks

Answer 1

oldest samples 4400 Ma

Question 2

maria:

Answer 2

basalt lava flows

Question 3

highlands:

Answer 3

anorthosite (plagioclase rich)

Question 4

asteroid belt:

Answer 4

c -type
s- type
m-type

Question 5

c type asteroids

Answer 5

carboancaous, make up 75% of visible asteroids, found on outsides of the belt

Question 6

s type

Answer 6

silicate, 17% of asteroids, found in the middle of belt

Question 7

m type

Answer 7

metalic - 10% of visible asteroids

Question 8

venus

Answer 8

compsition size and mass similar to earth. no oceans covered in think spinning clouds that trap surface heat hot enough to melt lead