Answer:
C. The clocks use mutations that are difficult to identify and track.
Explanation:
I believe it's "pollen".
When the pollen grains are washed down into lakes/rivers, scientists can take a sample of the sediment layers and see what plants were growing at that time. They can then make inferences about the climate and how that affected the plants growing there.
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1. Use special knee and elbow pads to prevent the child from joint bleeds. Ceramic tiles should also be carpeted.
If the child is very active, it is advisable for the child to wear a helmet to prevent head injuries.
2. Regular exercise: Exercises will help strengthen the muscles and decrease the chances of bleeding from injuries. A good exercise is swimming, because it helps exercise all the muscles without putting street on the joints.
3. Caring for teeth: It is advisable for the child to brush twice daily and floss regularly. This would reduce the chances of the child's gum to bleed.
negative impact for social is that some people tend to be self-consious when out in the public. for physicsl and emotional it is alright but they need to be carfeul when going outdie and ake sure they are hanging out with the right people
I think its c.trace fossils because this is an print of an organism that was of the animal, but produced from them, which means it could be put on a rock.