You and your younger sibling are at a state park. You come across a doe (a female deer) in a grassy clearing. Your sibling asked, "How does the deer survive on just grass?" You begin to explain to your younger sibling how all livings obtain and use energy. It
proves to be a difficult task, so, you decide to answer the few questions she has instead of lecturing her any longer. The
following question is one she is asking:
Where does all the energy on Earth used by living things originate from?
The Moon
The Sun
The Earth's Core
Mars

the sun

Explanation:

everything relies on the sun for energy

The answer on top is right

Explanation:

answer: - few nutrients

high pressure

low temperatures

explanation: 1. few nutrients:   open-ocean zone is located way far from the land, which is the main source of the essential nutrients.2. high pressure: pressure increases by 1 atmosphere for every 10 meters increase in depth.3. ample sunlight: a large fraction of the sunlight is reflected back to the atmosphere from the sea surface. 4. varying salinity: below the thermocline, the water is isolated from the atmosphere so the salinity remains stable over the year.5. low temperatures:   the temperature of open-ocean zone ranges from a low of -2°c to an average of 17°c