The remains impressions of animals and plants preserved in rocks are referred to as

Step 1: Analyze the question The question asks for the term used for the remains or impressions of animals and plants that have been preserved in rocks.

Step 2: Explain the concept When plants and animals die, their bodies may be buried quickly in sediments such as mud, sand, or volcanic ash. Over millions of years, the sediments harden into rock. The hard parts (bones, shells, teeth, wood) or the imprints they leave behind are preserved. These preserved remains or impressions are called fossils. The study of fossils is called palaeontology, and fossils are important evidence for organic evolution.

Step 3: Check each option

• A. Crusts: These are hard outer layers, such as the Earth's crust or a crust of bread. They are not preserved organisms.
• B. Fossils: These are preserved remains or impressions of ancient organisms in rocks. This fits the question exactly.
• C. Honeycomb: This is the wax structure made by bees to store honey and larvae.
• D. Plaques: These are flat deposits, such as dental plaque on teeth. They are not preserved organisms.
• E. Residues: These are leftover substances after a process such as filtration or evaporation.

Step 4: Answer The correct option is B. fossils.

Tip: Remember the phrase "fossils are found in sedimentary rocks." If a question mentions preserved remains or impressions in rocks, think "fossil" and "evidence of evolution." Fossils are rarely found in igneous rocks because the heat destroys organic remains.