Answer:
the cycle of processes by which water circulates between the earth's oceans, atmosphere, and land, involving precipitation as rain and snow, drainage in streams and rivers, and return to the atmosphere by evaporation and transpiration.
Answer:
Option 3,
Explanation:
In the process of cellular respiration, the sugar is oxidised to convert into carbon dioxide , water and energy molecule ATP (Adenosine Tri Phosphate)
If the above chemical reaction is represented mathematically it will be as follows -

The above reaction is a balanced chemical reaction representing cellular reaction
Thus, option 3 is correct
The best answer is C.Ribosomes are cell organelles or structures that make protein. Ribosomes are found floating in the cytoplasm or attached to the endoplasmic reticulum of the cell.The location of the ribosome will determine what kind of protein it makes. If the ribosome is attached to the endoplasmic reticulum then it will make protein for usage within the cell or outside the cell. If found freely floating in the cytoplasm, then it will make protein that will be used only within the cell and not outside.
Explanation: One of the highest probabilities is because of the bird in the front (the one in the point of the v) takes the command in leading to others in the flock to there location which explains for that as in there is no new members of there flock doing so.
Another reason could be is air resistances and helps the flock fly.