Answer:
The diagram is depicting that light energy from the sun, carbon dioxide from air and water from soil are required for producing sugars and oxygen by the plant. The sugars produced by the process of photosynthesis is glucose. Oxygen is produced as by-product of this reaction. The glucose produced by the plant cells is utilized to carry out essential functions whereas the oxygen is mostly released into the air and it is also used for cellular respiration.
Answer: In order to build a hypothesis, Joan should take an educated guess at what the effect of adding salt to the water will be on the water's boiling point. For example, the hypothesis may be,"The boiling point will increase". This hypothesis is one that can be verified or rejected via experimentation. The next step for Joan would be to set up an experiment to test this hypothesis.
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<h2>They produce oxygen for the other living organisms </h2>
I would say D, because enzymes are chemical reactions, and heat can trigger a reaction between two dormant chemicals, and when the heat runs out, the enzyme will stop working.