Question

animal remains preserved in amber, tar or ice
a. cast fossil
b. preserved fossil
c. trace fossil
d. mold fossil

Explanation:

Preserved fossils are the actual remains of organisms that have been preserved in substances like amber, tar, or ice. Cast fossils are formed when a mold is filled with sediment or minerals. Trace fossils are evidence of the activity of organisms (e.g., footprints). Mold fossils are impressions left by an organism.

Answer:

B. preserved fossil