Answer:
Plants and animals release acid forming chemicals that cause weathering and also contribute to the breaking down of rocks and landforms.
Explanation:
sorry if im wrong
 
        
                    
             
        
        
        
Answer:
Noroviruses are a group of viruses that cause gastroenteritis in people. Gastroenteritis is an inflammation of the lining of the stomach and intestines, causing an acute onset of severe vomiting and diarrhea. Norovirus illness is usually brief in people who are otherwise healthy. an RNA virus of the family Caliciviridae, is a human enteric pathogen that causes substantial morbidity across both health care and community settings, causes vomiting and diarrhea. People of all ages can get infected and sick with norovirus. Norovirus spreads easily! You can get norovirus by accidentally getting tiny particles of feces (poop) or vomit from an infected person in your mouth.
Explanation:
It's a bacteria it's says virus but it's a bacteria 
 
        
             
        
        
        
Answer:
The Markonikov's rule determines where to add a nucleotide in the reaction 
Explanation:
In organic chemistry, the organic carbonyl reactions are governed by a set of rules. One of them is the Markovnikov's rule. Basically, the rule determines where the addition of the nucleophile and a hydrogen will take place in a chemical reaction involving alkene addition. In the reaction principles, there are rules to follow based on the syn and anti addition. This refers to which side the two groups will face. they add to the same side an called the syn. When its opposite side, then its anti. 
 
        
             
        
        
        
I think they're set in a vertical motion. Up to the crest and down towards the trough. Something about kinetic energy
        
             
        
        
        
The answer is d. dormancy.
Dormancy is physiological condition during which growth and development are temporarily stopped. The aim of this condition is to preserve energy by minimizing metabolic activity, usually because of inadequate environmental conditions. 
Dispersal refers to movement of individuals from one site to another. Fertilization means a fusion of gametes to develop a new organism.
Germination is a process of growing plant from a seed.