Answer: working with intense pressure and heat
Explanation: you would you have to work with intense pressure and heat in order to fuse two hydrogen nuclei together to create helium isotopes.
Active transport is the movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy.
It may be determination (not sure though)
Answer:
Evolution is change in the heritable characteristics of biological populations over successive generations.
Explanation:
An example of evolution is the theory started by Charles Darwin that theorizes about how humans came to be in their present form.