D because gravitational force cannot pull or push
Answer:
Photosynthesis is the process in which plants materialize the energy from the sun to create food out of carbon dioxide and water. During this same process of Photosynthesis plants release clean oxygen for other living to breath in.
Explanation:
These finger-like projections that are seen when magnifying a cross section of the small intestine are crucial for digestion because they move the food along the tract.
A nuclear reactor produces and controls the release of energy from splitting the atoms of uranium.
Uranium-fuelled nuclear power is a clean and efficient way of boiling water to make steam which drives turbine generators. Except for the reactor itself, a nuclear power station works like most coal or gas-fired power stations.
The first option.
The example of an baryonic material is dark matter I hope this help