A-
1. Like water, other types of matter like carbon, oxygen , and nitrogen go through physical and chemical changes.
2. The total mass of the matter is the same before and after a change this is known as the laws of conservation of mass.
3. Most of Earths water is in the ocean.
4. The path water follows as it moves from Earth through the atmosphere and back to Earth is called the water cycle.
5. The three processes involved in the water cycle are evaporation, condensation, and precipitation.
a. Water changes from a liquid to as gas during the process of vaporization.
b. water vapor changes back into liquid water during condensation.
c. . Rain, snow, sleet, and hail are examples of precipitation.
Honestly that's all the answer I can put up with right now but I hope I have come to do you good and helped you through :)
The answer is; Pepsin
Pepsin is first secreted by the chief cells of the stomach wall and the inactive precursor called pepsinogen. When pepsinogen interacts with the acidic environment of the stomach due to hydrochloric acid, it is turned to pepsin. The pepsin breaks down large protein molecules to smaller molecules.
Polar bears have large paws so that their body weight spread our over more space on the ice.
Imagine then as snowshoes for a human. They keep you up =).
Hope that helps! =)
Answer:
A food web consists of all the food chains in a single ecosystem.
Explanation:
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