Answer:
Oceanic Trenches
Explanation:
Oceanic trenches are topographic depressions of the sea floor, relatively narrow in width, but very long. These oceanographic features are the deepest parts of the ocean floor
Answer:
Ventilation is the movement of a volume of gas into and out of the lungs. Respiration is the exchange of oxygen and carbon dioxide across a membrane either in the lungs or at the cellular level.
Explanation:
Answer:
from a person/animal/etc
Explanation:
you cant apply force from a rope or from the friction of an objects motion so the answer is B
Adaptation are genetic changes in the species over generations whereas growth and development happens to one animal in it’s lifetime
Answer: Carbon
Explanation:
Carbon is a chemical element which exhibit an atomic mass of 12. It is a nonmetal. Carbon is the key ingredient which is present in all the organic molecules. As it is abundantly available in nature. It exists on earth in the form of solid, liquid and gas. It is present in the biomolecules such as fat, proteins and carbohydrates.
On the basis of the above explanation, the carbon is the element which is present in all organic compounds.