Need answer asap
which of the following statements about the effects of agricultural techniques on the environment is true?
a.
fertilizer used for agriculture can enter bodies of water, causing eventual oxygen depletion.
b.
pesticides and herbicides are potentially harmful to bodies of water only before they degrade.
c.
agricultural practices have limited impact on the surrounding environment.
d.
tillage is an important agricultural practice that has no known environmental impact.

a.

Fertilizer used for agriculture can enter bodies of water, causing eventual oxygen depletion.

Explanation:

the animal that would be cutest if scaled down to the size of a cat? elephant

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.