D! Because a gas takes its form and volume of its container
It is only one nuclei in a cell
I think it would be that fish farming does not happen in the ocean environment therefore an excess of fish waste would not affect will fishes that humans consume. Another term for this is pisciculture. It involves growing fishes in tanks.
Mass movements (also called mass-wasting) is the down-slope movement of Regolith (loose uncemented mixture of soil and rock particles that covers the Earth's surface) by the force of gravity without the aid of a transporting medium such as water, ice, or wind.
The rate at which it moved
The type of motion is the most important characteristic of a slope failure, and there are three different types of motion:
If the material drops through the air, vertically or nearly vertically, it’s known as a fall.
If the material moves as a mass along a sloping surface (without internal motion within the mass), it’s a slide.
If the material has internal motion, like a fluid, it’s a flow.
Each one is correct except d