What is the chemical formula for hydrogen sulfide?

Which of the following is an example of a double displacement reaction?

What is the primary function of white blood cells in the human body?

What is the term for the process by which a river deposits sediment as it loses energy, often forming a fan-shaped landform?

What is the term for the movement of air from regions of high pressure to low pressure, creating wind?

Which of the following is a significant factor contributing to the greenhouse effect on Earth?

Which law states that the total electric charge in an isolated system is constant?

What is the name of the phenomenon where light is bent as it passes through the gravitational field of a massive object, such as a galaxy or cluster of galaxies?

What is the term for the process by which a glacier melts and releases sediments it carried, shaping the landscape?

Which of the following is a measure of the total amount of dissolved salts in water, often used to determine water salinity?