I'd say
B. Contour Farming
since it's planting on a flat surface and creating w/ridges to help prevent water from taking the crops away
The point on earth's surface directly above an earthquakes focus (hypocenter) is called the epicenter.
DNA replication
DNA replication is the process by which DNA makes a copy of itself during cell division. The first step in DNA replication is to 'unzip' the double helix structure of the DNA? molecule. ... The two separated strands will act as templates for making the new strands of DNA
It’s C because they took out the letter A from the new strand of DNA. btw deletion means to take away and substitution means to sub in a letter. hope that helped!
