1. The crust comprises two distinct layers of sial and:
a. sima
b. mantle
c. core
2. The lower oceanic crust is also called:
a. core
b. mantle
C. sima
3. The main constituents of the core are iron and:
a nickel
b. magnesium
c. aluminium
4. Bauxite is an ore of:
a. aluminium
b. iron
c. manganese
5. Rock salt is an example of a:
a. igneous rock
b. metamorphic rock C. c.sedimentary rock
Answer:
1. a
2. c
3.a
4.a
5.c
Explanation:
please mark me as brainlist