Answer:
C
Explanation:
one of the plates goes under another, hence SUBduction, sub meaning under or down
Answer:
It is important that he human trachea is reinforced with cartilaginous rings to keep the passage open as pressure keeps fluctuating during the process of breathing.
Explanation:
The trachea is reinforced with cartilaginous rings as it doesn't allow the trachea to collapse in our day to day lifestyle. It also keeps the air way passage open in spite of the continuous pressure changes during breathing.
The rings are not complete posteriorly to provide another advantage, that is it allows the esophagus to expand anteriorly ( inside the body) when we swallow food.
it’s gravity holds the solar system together keeping everything from the biggest planet to the smallest particles of debris in its orbit the connection and interactions between the sun and earth drive to seasons ocean current weather climate radiation belt and auroras
To reduce erosion and to get rid of pesticides on farms