Answer:
Explanation:
Crop rotation 
Rotation of crop is important to help conserve nutrients that are available in the soil and prevent total use up of the nutrients. The same type of plants all year round on the same soil keeps on draining the land of the same nutrients needed for their growth. Rotation of different can help maintain soil nutrients level as some crop fixes nutrients in the soil. 
Natural mulching
The use of cover cops as mulch helps protect the soil and allows for retention of nutrients. When cover crops are harvested the leaves can be turned back into soil to release nutrients that are stored up in the plant part.
Composting is the process of decomposing organic matter this could include animal waste such as dung,leaves both green and dead, kitchen. This waste are stored up, little water is added to moist and then allow to decompose it can be mixed together after few days to aerate after. After decomposing to form compost it can be added to the soil. It is usually rich in nutrients.
 
        
             
        
        
        
Volcanic eruptions spew alot of carbon dioxide and sulphur dioxide into the atmosphere. These gases when mixed with rain and run into oceans increase their pH. Additionally, these gases are greenhouse gases that increases atmospheric temperatures and consequently those of the seas and oceans. 
Low pH and high temperatures kill marine life.
        
             
        
        
        
Answer:
DD TT
Explanation:
They are the same and capital 
 
        
             
        
        
        
He observed 15 different finch species that originated as one ancestral bird. all differing in body shape, beak size, and mating habbits
        
             
        
        
        
Keratinized, <span>stratified columnar, </span>