Water covers about 70% of Earth's surface. Why is this resource precious and one that needs to be conserved? O A. The world's freshwater to be trapped in the atmosphere due to the greenhouse effect
o
B. Most of Earth's freshwater is unavailable for drinking and irrigation
a
C. The polar ice caps are trapping more freshwater each year
D. The Earth's oceans are evaporating due to global warming caused by greenhouse gas emissions

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.

it is a limiting nutrient limited by a single nutrient in the ecosystem, & the single goes very slow.