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Rate of doing work is called.
a) Energy                              
b) 
Power
c) Momentum                     
d) Impulse

b

Explanation: Power is defined as the rate at which work is done or the amount of work done per unit of time. Mathematically, power is calculated as the work done divided by the time taken. The unit of power is the watt (W), which is equivalent to one joule per second (J/s).



The substance produced as a direct result of photosynthesis is:
a) 
Glucose                           
b) Protein
c) Fat                                    
d) Iodine

a

Explanation: During the process of photosynthesis, plants and some other organisms convert sunlight, water, and carbon dioxide into glucose and oxygen.



Identification of individuals by their respective DNA structure is called.
a) DNA testing    
b) DNA typing
c) Genetic finger printing                  
d) 
All of them

d

The optimal use of nature for the production of renewable energy and food is called.
a) Environmental auditing                
b) Ecological succession
c) Environmental mitigation            
d) 
Environmental biotechnology

d

Some compounds on heating decompose to simpler compound or elements. This type of reaction is called.
a) Additional reaction                        
b) 
Decomposition reaction
c) Process of respiration    
d) Replication of DNA

b

The euglena is different from the amoeba in possessing.
a) Cytoplasm                      
b) A nucleus
c) A cell membrane           
d) 
Chloroplast

d

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