Answer:
l think the suitable answer can be no.A. and no.D.
Answer:
Troposphere, stratosphere, mesosphere, thermosphere
this is the layers from space into earth
Answer:
Gene therapy is used to correct defective genes in order to cure a disease or help your body better fight disease. Researchers are investigating several ways to do this, including: Replacing mutated genes. Some cells become diseased because certain genes work incorrectly or no longer work at all
