Plz answer I will mark u as Carla drew a diagram to compare the roles of oxygen and hydrogen in photosynthesis. Which label belongs in the area marked Y? Enters plant as a part of water Combines with carbon dioxide Is released into air through stomata Is stored in leaves for later use

Option A, Enters plant as part of water

Explanation:

In the process of photosynthesis, water molecule is broken down into oxygen and hydrogen through photolysis.

Once the molecule is broken down , oxygen is  released and hydrogen ion are used for initiating the further reactions in photosynthesis.

The following reaction occurs in photolysis-

2H2O > 4H+ + O2

Water is the most suitable subset among all.

Hence, option A is correct

Not sure, but a good chance that it is released into air through stomata

Explanation:

You need to add a picture or something to make it clearer.

step 1 ammonium can be absorbed by plants, but some is converted into nitrates which are better for plants to absorb. this is called nitrification. 2. step 2 the deer eats the plants and uses the nitrogen-containing proteins for cell growth. 3. step 3 bacteria in the soil conduct nitrogen fixation to convert nitrogen gas from the atmosphere into ammonium. 4. step 4 some of the nitrates are absorbed back into plants, but denitrification breaks down the nitrates into nitrogen gas released back into the atmosphere. 5. step 5 nitrogen is found in the urine, which gets broken down into ammonium through the process of ammonification. 6. step 6 plants absorb the ammonium and begin assimilation, the process to add the nitrogen to protein.