Question

immersive reader
which of the following would be a clue that a rock is sedimentary?
choose one option
a it has gas bubbles throughout.
b it has small particles stuck together.
c it is very hard.
d all of the above.

Explanation:

Sedimentary rocks are formed from the accumulation and compaction of small particles (sediments). Gas bubbles throughout a rock are more characteristic of igneous rocks (formed from cooled magma/lava where gas can get trapped). While some sedimentary rocks can be hard, this is not a unique or defining clue as other rock types (like some igneous or metamorphic) can also be hard. The key and most defining characteristic among the options for a sedimentary rock is the presence of small particles stuck together.

Answer:

B. It has small particles stuck together.