Which of the following is a diatomic molecule?

In the human respiratory system, where does gas exchange with the bloodstream occur?

What is the term for the process by which water returns to the Earth's surface from the atmosphere in the form of rain, snow, sleet, or hail?

What is the function of red bone marrow in the human body?

Which law of motion states that the rate of change of momentum of an object is directly proportional to the net external force acting on it?

Which hormone is responsible for regulating metabolism in the human body?

What is the powerhouse of the cell, responsible for energy production?

Which planet is known as the "Red Planet"?

Which subatomic particle carries a negative electric charge?

What is the function of the thymus gland in the immune system?