Answer:
Explanation:
In Double replacement reactions there is the exchange of anions and cations. 
So to predict the double displacement reactions you must identify the anions and cations to be exchanged.
 
        
             
        
        
        
Many farmers in less densely populated area, such as Amazonia, practice slash and burn agriculture, also known as shifting cultivation or swidden agriculture where an area is cleared and then burned for the vegetative remains to release nutrients back into the soil. Shifting cultivation is a system where a farmer uses a piece of land, only to abandon or alter the initial use a short time later. Advantages of shifting cultivation includes; enhance control of pest and disease, inorganic matter addition which provide nutrient to crop, an effective way of weed control
        
             
        
        
        
Answer:
hii there 
The correct answer is option ( B ) isotonic 
Explanation:
Hope it helps 
have a nice day :)
 
        
             
        
        
        
What Question i can help if you want me to
        
             
        
        
        
The True statements are.
Organisms in a population must compete for the resources as the resources are limited and the organism that compete and survives wins.
The best equipped organism survive which is known as the survival of the fittest.
Over the time due to challenges in the environment the beneficial variation takes place in the organisms and it spreads through the generations and then it gradually changes the whole population.
The false statement is Organism of the same species are equipped with the same survival skills.
The organism of the same species have some variation and because of this variation they compete and win against the other member of the same species.