An average person (let's say one that weights 70 kg) has about 5.5 liters of blood (that's a little more than 160 ounces or 1.2 to 1.5 gallons). Other way of saying this is : about 7% of body weight.
They are important because they contribute to clean air and water for 500 million people this is because they help sustain a healthy forest
Fossils are the remains or impression of the dead animals and plants that lived in the past.
B, for sure. Producers, Like grass and Flowers need water to make food. Consumers, like Cats, Snakes and Boars need water to drink so our internal systems will function properly.
Im not sure if decomposers need water, but if there is less water then more animals die and they get food. so, not sure about that one.
It radiates light and heat, or solar energy, which makes it possible for life to exist on Earth. Plants need sunlight to grow. Animals, including humans, need plants for food and the oxygen they produce. Without heat from the sun, Earth would freeze.
