The answer is ‘increase…increase’. Rainforests are huge carbon sinks. They take up carbon diode from the atmosphere for <span>their photosynthesis. This regulates the amount of carbon dioxide, a greenhouse gas, in the air and hence reduces global warming. Loss of rainforests causes an increase in carbon dioxide in the atmosphere and this increases the greenhouse effect that is the center of global warming. </span>
The organisms which appeared on earth first was bacteria.
<u>Explanation:</u>
- The first-ever living organism on Earth was a bacteria known as cyanobacteria. It is believed by scientists that it first formed around 3 billion years ago.
- When the Earth was first formed, it was inhospitable for a long time until 3.8 billion years ago approximately, the core cooled down and the level of oxygen had risen. This, along with photosynthesis resulted in the formation of Cyanobacteria.
- These organisms were capable of carrying out the process of photosynthesis by which they prepared their food. These were known as common ancestors. All the living organisms thereafter are known to be their descendants.
Crater lake was produced when a stratovolcano collapsed, creating the crater.
Answer:
Liquid water evaporates into water vapor, condenses to form clouds, and precipitates back to earth in the form of rain and snow. Water in different phases moves through the atmosphere. Water in different phases moves through the atmosphere
Answer:
According to my search:
Explanation:
The cell wall surrounds the plasma membrane of plant cells and provides tensile strength and protection against mechanical and osmotic stress. It also allows cells to develop turgor pressure, which is the pressure of the cell contents against the cell wall.
Generally:
- It protects the cell and prevents any physical damage.
- It provides structure to the cell. It prevents osmotic bursting.
- It protects the protoplasm against mechanical injury.