1. What is another name for biogeochemical cycles? 2. What is Nutrient?
3. Differentiate between macronutrient and micronutrients? Give
some examples of each type.
4. What did the law of conservation of matter say?

Substances that living organism obtained from food substances consumed for effective  biochemical reactions of the body are called nutrients.Theses substances are produced  in cells of living organisms,they are therefore obtained from the food substances consumed.When they  are needed in large amounts for survival of living organisms they are called Macro nutrients or essential nutrients-CHO,proteins fatty acids  are examples but in smaller amounts as micro nutrients,because they are needed for the general well being,thus living organism can survive without them-Ca,K,Zn,Mg are examples,

The law of conservation matter- Matter in any chemical reactions the total mass of the product must be equal in proportion to that of the reactants.Thus the mass in the reaction must be constant,

Biogeochemical cycles;this is also known as substances turn over,It is the exchange of elements and compounds between the living organism and their immediate environments.

Thus living  organisms obtained substances in the food chain as this is moved from one trophic levels to another.These are used for different biochemical reactions. However,they are expanded  for  different biochemical activities ,excretion,respiration,locomotion and movements and  death and decomposition where after decay,are reabsorbed by the producers for the cycle to continue.

Explanation:

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.

he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

i hope this : )