Why is the enzyme lactase necessary to digest dairy products?

The enzyme lactase helps digest dairy products through breaking it down into two simple sugars which as glucose and galactose. The body have difficulties in absorbing full lactose molecule thus the need for breaking it down into simpler sugars. This is why lactase is important as it splits the bond that holds the galactose and glucose. 

c. genetic engineering

explanation:

enhanced global partnerships and exploration capabilities may advance international preparedness for protecting the earth from catastrophic events such as some asteroid strikes, advancing collaborative research on space weather and protecting spacecraft by developing new means for space debris removal.