<h2>Input = 

, water and Output = 

</h2>
Explanation:
The light reactions of photosynthesis use water and produce Oxygen, NADPH.
The equation for photosynthesis :
 → 
The process of photosynthesis in two stages -
- The first stage is called the light reaction in which the light energy from the sun is captured and converted into chemical energy stored in the form of ATP and NADPH
 
- The second stage is the process of conversion of ATP molecules to sugar or glucose (the Calvin Cycle)
 
For a light reaction -
Net Input is of, 
, 
Net Output is of, 
 
        
             
        
        
        
Weathering is the physical or chemical process where rocks are
broken down to form sediments.
 • Physical weathering does not change the rock’s composition.
 • Chemical weathering does change the rock’s composition
 • Erosion is the process where forces such as water, wind, ice, or gravity
transport sediments to some remote location
        
                    
             
        
        
        
Answer: The electronic configuration of nitrogen is 1s2 2s2 2p3. Thus nitrogen has a half-filled p orbital, which is comparatively more stable. Thus the p orbital is the outermost orbital. To achieve a stable gas configuration, nitrogen needs to have a fulfilled p orbital.
Explanation: please mark brainlyest i really nead it
 
        
                    
             
        
        
        
<span>the best answer is C i.e is ionoic compound. but all other option sare quite close enough but option  B is sure wrong. because A molecular compound does not separate in a solvent.</span>
        
             
        
        
        
Answer: 714 g Al2O3
Explanation: Solution attached
First convert mass of O2 to moles
Do the mole ratio between O2 and Al2O3 from the balanced equation.
Convert moles of Al2O3 to mass using its molar mass.