Why is still water an ideal environment for the formation of mold and cast fossils?
A. Sediment builds up over organisms.
B. Sediment turns organisms into rock.
C. Hard tissue decays under sediment.
D. Soft tissue is preserved under sediment.
Answers
The process of fossilization takes places only if erosion is practically lacking. Fossils will only form if the external tissues are preserved. Still water is one of the best environments for the formation of fossils as it does not erode the external tissues of the animal by any means.
So as per the options provided by you the correct answer to this question should be D as all soft tissues of the organism are well preserved over a period of time. it prevents the soft tissues from being eroded, which is helpful for the formation of fossil.
Why is still water an ideal environment for the formation of mold and cast fossils?
A. Sediment builds up over organisms.
B. Sediment turns organisms into rock.
C. Hard tissue decays under sediment.
D. Soft tissue is preserved under sediment.
Answer to the question is: Option D.
The reason for the answer is: Still water is one of the major factor which is responsible for the formation of fossil fuels in water bodies. If the water is not still then fossil fuel could not be formed. So option D is the correct answer.