Question

1a. which of the following is not a type of rock?
choose an option
a igneous
b sedimentary
c metamorphic
d fossil

Explanation:

Rocks are classified into three main types: igneous (formed from cooled magma/lava), sedimentary (formed from sediment accumulation), and metamorphic (formed from existing rocks under heat and pressure). Fossils are remains or traces of ancient organisms found in rocks, not a type of rock itself.

Answer:

D. Fossil