when when water at 40 degree celsius is cool to 20 degree Celsius will the water level increase or decrease or remain same

What’s the scientific notation for the number 6,840,000,000

Why is permeable soil best for plants that need a lot of drainage?

Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange