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What happens during the light reaction of photosynthesis?

1.Water molecules split apart 2.Carbon dioxide is combined with glucose

3.Water molecules combine to make food. 4. Air and water create energy for a plant

The light reaction of photosynthesis comprised of the prime functions of water and air which combine together to form energy for the rest of the reaction.

Option D

Explanation:

The Light Reaction of Photosynthesis:

The light reaction of Photosynthesis is the first half of the complete reaction that combines with the second half to produce the resultant products i.e., glucose and Oxygen.

There are two stages of photosynthesis: The Light Reaction and the Calvin Cycle. In the light reaction; energy is absorbed from the sunlight by the chlorophyll pigments which is transferred to two molecules ATP and NADPH.

Since the whole process takes place in the sunlight which plays a crucial role in the reactions, it is named as the light reaction. The ultimate product of this stage is Oxygen which is further used in the second stage of the reaction i.e. the Calvin Cycle.

assuming that your periodic table has eighteen columns, you should highlight   the four elements in the third column from the left of the table.

neutral atoms of elements after calcium contain d electrons. the energy of d orbitals of a particular main shell lies between the energy of the s and p orbitals of the next main shell. for example, electrons in the have energy higher than those in the orbital while lower than those of the orbital.

by the aufbau principle, electrons fill orbitals one at a time, starting from those of the lowest energy. the orbital is therefore filled right after orbitals and before orbitals.  

potassium has electron configuration and calcium . the s orbital of a main shell holds a maximum of two electrons. the next element would thus have the electron configuration and satisfy the requirements.

a neutral atom of the element contains three electrons on top of the most recent noble gas element. it should thus be placed in the third column of the periodic table. both scandium and yttrium would satisfy the conditions. an aufbau diagram indicates that the 4f orbital is filled before the 5d. however, it appears that exceptions exists for both lanthanum and actinium. neutral atoms of the two d-block elements also demonstrate the and should be highlighted as well.

it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.