Question

underline the correct words.

1. (fossils, rocks) are the remains or imprints of plants and animals that died long ago.
2. fossils are usually found in (sedimentary, igneous) rock.
3. footprints of animals (may, may not) become fossils.
4. giant wooly mammoths have been found frozen in (mud, ice).

Explanation:

1.

Fossils are the remains or imprints of plants and animals that died long ago, while rocks are a broader category of geological materials. So "Fossils" is the correct word here.

Fossils are usually found in sedimentary rock. Igneous rock is formed from cooled magma or lava and is less likely to contain fossils as the high temperatures would destroy organic remains. So "sedimentary" is correct.

Footprints of animals may become fossils under the right conditions (like being covered and preserved over time), while "may not" doesn't align with the possibility of fossilization of footprints. So "may" is correct.

Answer:

Fossils

2.