What is the innermost layer of earth called

Plz ! a scientist wants to produce a cow that makes a particular human protein in it’s milk the desired protein causes blood to clot and can be used to treat hemophilia (a blood clotting disorder). which of the following would be best for the scientist to use? a. genetic crosses. b. cloning. c. selective breeding. d. genetic engineering.

Hurry where is the majority of earth's water found? o glaciers o oceans ground o rivers and lakes

Plants consume most of their carbon from a. the soil b. the water c. the roots d. the air