The answer for this would be B!!
Compounds are molecules with 2 or more elements
So the answer would be the third one
CO2;H2O
Answer:
Gravitational force
Explanation:
Gravitational force is obviously one of the biggest obstacles in climbing. You are essentially going against this very strong force to pull your body mass up the beautiful terrain. Gravity is defined as the force of attraction between all masses in the universe, gravity is what allows the sport of climbing.
D. a membrane bound nucleus , lmk if im right