The rigth answer is cell membrane.
A cell membrane distinguishes a fundamental cellular structure formed from a double layer of phospholipids associated with other lipids, proteins and carbohydrates.
The membrane of the cell, also known as the plasma or cytoplasmic membrane, is a biological membrane (biomembrane) that separates the interior of all cells from the external environment.
The plasma membrane, cytoplasmic membrane or plasmalemma delimits the cytoplasm of the cell. Organelles are surrounded by a single cell membrane (peroxisomes, lysosomes, endoplasmic reticulum, dictyosomes, vacuole) or double (nucleus, plastids).
Answer:
C
Explanation:
The exerpt states that movements in the Earth's crust (unbalance) causes Earthquakes. When it's balanced, there is no plate movement.
One of the things that controls population growth is the availability of food, the birth rate and death rate, the maximum carrying capacity of an area, and disease.
The best answer is C i.e. humans might extract more water from the ground