Answer:
Water cycle is also known as the hydrological cycle. It involves the water in water bodies such as ocean, river, lakes etc being heated up by the sun and then evaporations into the atmosphere. The evaporated water then condenses and falls back as rain into the water bodies.
The water body is always low during summer due to the water being heated and evaporated into the atmosphere and high during spring/winter due to rainfall and less evaporation.
 
        
             
        
        
        
Answer:
C) cytoplasmic determinants 
Explanation:
Cytoplasmic determinants are special molecules which play a very important role during oocyte maturation, in the female's ovary. 
 
        
                    
             
        
        
        
Answer:
A. Water molecules are split.
Explanation:
The light dependent reactions of photosynthesis require the energy in sunlight to proceed. Structures called photosystems which contain chlorophyll absorb the light from the sun to generate excited electrons, which are transferred to electron carriers ATP and NADH. 
These electron carriers are used in the light-independent reactions of photosynthesis.
During this process,  the high energy electrons are passed to an acceptor molecule and replaced with an electron from water. This splitting of water produces H+ ions and oxygen as a byproduct. The splitting of water is called photolysis
 
        
             
        
        
        
Onion is an underground crop and it have no involvement in the photosynthesis. So it have no chloroplast in their cell.
Hope this helps!
-Payshence