Food was cooked, quickly frozen, and then dehydrated in a special vacuum chamber. Freeze-dried food didn't need to be refrigerated and would last a long time. To make most freeze-dried foods, astronauts squeeze water into the food packages and then eat the food after it absorbs the water.
        
                    
             
        
        
        
Answer: Photosynthesis
Explanation: Photosynthesis removes CO2 from the atmosphere and replaces it with O2. Respiration takes O2 from the atmosphere and replaces it with CO2.
 
        
                    
             
        
        
        
Answer:
The relationship between Proteins and Nucleic acids is that both find their application in the gene expression process of the living body. During the gene expression in every living cell of any organism, it is seen that the nucleic acids code for amino acids to create proteins
 
        
                    
             
        
        
        
<h2>Answer is option "b"</h2><h3>
Explanation:</h3>
- The complement systems are a key natural insusceptible barrier against disease and a significant driver of irritation; in any case, these very properties can likewise cause hurt. Unseemly or uncontrolled initiation of compliment can cause nearby as well as fundamental irritation, tissue harm and ailment. 
- Complement gives various choices to tranquilize advancement as it is a proteolytic course that includes nine explicit proteases, one of a kind multimolecular enactment and lytic edifices, a stockpile of characteristic inhibitors, and various receptors that dilemma to actuation sections. 
- Medication configuration is encouraged by the undeniably itemized basic comprehension of the atoms associated with the complement system. Just two enemies of compliment drugs are as of now available, however, a lot more are being produced for sicknesses that incorporate irresistible, provocative, degenerative, horrible and neoplastic disorders.
- Hence, the right answer is option b "Complements".\
 
        
        
        
True
Atoms, Molecules, and small particles are always in motion.