Answer:
The measures which is taken by country need to prevent global warming are given below. 
1) The government of the country should planted more trees because plants are only organisms which reduces the concentration of harmful gases which causes global warming. 
2) Reduce the use of fossil fuels such as petrol, coal and methane gas. 
3) Use solar energy instead of fuel for the production of electricity and other industrial products. 
 
        
             
        
        
        
A diploid cell contains two complete sets of chromosomes, while a haploid cell only one set.
        
                    
             
        
        
        
<u>Answer:</u> 
To help relieve heartburn, a person should take medicine that is 'Over-the-counter (OTC) antacids and acid blockers'.
<u>EXPLANATION:</u>
- Heartburn is a very common symptom of a condition called Gastroesophageal reflux disease. 
- This affects the lower part of the esophageal sphincter and also the muscle ring-like connection between the 'esophagus and stomach' which tends to infuse a backward flow of the stomach secretions. 
- Along with some dietary and life style changes, the intake of antacids and acid blockers can help in the relieve of the symptoms of occasional heartburn.
 
        
             
        
        
        
B. Cell wall because animal cell has its non-fixed shape and plant cell has fixed shape.