Answer:
The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells.
Therefore, B is the answer.
"All living cells require water for survival" is NOT a statement from the cell theory.
The last one: Carbon dioxide is released into the atmosphere
Answer:
The greenhouse effect is a natural process that warms the Earth's surface.
Explanation:Greenhouse gases cause the earth to warm up
Answer:
The north end of Earth's axis is tilted toward the Sun
Explanation: