<h2>Answer:</h2>
The correct answer is option C which is The light reactions harvest ___ <u>energy____</u>, while the carbon reactions produce<u> __carbohydrates_____.</u>
<h3>
Explanation:</h3>
- The light dependent reaction is the first part of photosynthesis.
- In the light energy energy is captured and used to break a water molecule into hydrogen ans oxygen ions with free electrons.
- These electrons move into a electron transport chain lean to dark reaction.
- Energy from these electrons is used in the dark reaction to produce carbohydrates from the CO2 and H2O and energy from the light reaction.
 
        
        
        
The diaphragm, 
During inhalation, the diaphragm is contracted which increases the volume of the lung cavity. During exhalation, the diaphragm is relaxed which decreases the volume of the lung cavity
        
             
        
        
        
Metamorphic rock; because a rock that has added heat or pressure is metamorphic because it’s been chemically and physically changed
        
                    
             
        
        
        
Answer:
B. Offering advice about how best to perform a standard procedure.
Explanation:
Helping others can be in different ways, be it helping out or by giving encouraging words or advice. But in all aspects of help, there is always a positive outcome if help is given in the right way and at the right time. And it is also how one person lifts another.
A scientist can help a colleague out by offering advice and telling the person how to best perform a standard procedure. This will help the colleague do better in the experiment and also help ensure that the right things are done and the efforts are successful. The other options are all negative in their 'approach' which will only hinder the colleague in his/her works.
Thus, the correct answer is option B.