The umbra is the innermost and dark part of the shadow where like it’s created by any light source and is completely blocked by the occluding body. It’s a Latin term hope this helps man!
Answer: I think number 2 b
Explanation:
1.Most aquatic animals have fins or paddles that help them swim
2. Skin is usually slippery and soft
B.Sometimes true,As you sometimes to need to learn on the alternative provided in getting a solution that is factual
