Answer:
A-all of the answers are correct
Explanation:
In DNA replication, the strands come apart and creat a "new copy" of the original strand.
Answer:
The soda ash is obtained in one of two ways: it can be manufactured by passing carbon dioxide and ammonia through a concentrated solution of sodium chloride (table salt). In our case, it is mined in the form of an ore called trona.
Mechanical weathering is really cool and it always is really much better
Answer
Villi is present on both of surface
Explanation
Intestine and lungs both have million of villi on the surface .In lungs and intestine villi increase the surface area but purpose is different . In lungs it is use for air exchange and in intestine it is use for food absorption .Both Villi of intestine and lungs are one cell thick and have maximum blood capillaries for food and air exchange respectively .