Answer:
A
Explanation:
photosynthesis converts light energy to chemical energy and not the other way round 
product of photosynthesis is oxygen and energy 
photosynthesis cannot occur is light energy is not available
 
        
             
        
        
        
Water accounts for most of a cell's mass!
 
        
                    
             
        
        
        
1- golgi bodies
2- cell membrane 
4-nucleus
5-mitochondria
7-endoplasmic reticulum
8-vacuole
i know those ones are right. 
3 and 6 are either lysosome and vacuoles but i don’t remember how to tell the difference
        
             
        
        
        
Answer:
oceanography
Explanation:
This is because astronomy is the study of stars and celestial things. Biology is the study of life and organisms. Meteorology is the study of weather and atmospheric phenomena. Oceanography is the study of physical and biological properties of the sea.