The practice of plowing fields along the curves of a slope is called a.
drought plowing.
b.
contour plowing.
c.
no-till plowing.
d.
sod plowing.

c

Explanation:

chemical properties are the characteristic of matter which can only be observed by changing the chemical identity of a sample like flammability reactivity and toxicity.

periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.