Decline of pollinators will have a severe impact on nature and mankind. why? please answer and I will mark you as brainlist.

Globally we are witnessing a decline in pollinators, such as wild bees, honeybees and hover flies, caused by the destruction and fragmentation of habitats, agricultural intensification and use of pesticides, introduction of novel diseases and competing alien species, and climate change

the sun d the answer is sun

hydroxyl -oh

alcohols, always polar, can form hydrogen bonds with h2o molecules

carboxyl -cooh  

cargoxylic acids, has acidic properties which is a source of hydrogen ions, found in cells in ionized for with a charge of oh-1

carbonyl > co

ketone if within skeleton, aldehyde if group is at the end of skeleton, k & a may be structural isomers, it determines 2 sugars (ketose & aldose)

amino -nh2

amines, acts as a base, it can pick up h+ ions from surrounding solution, ionized with charge of 1+

methyl ch2

addition to rna/dna affects and gene expression

phosphate -opo3 ²⁻

organic phosphates, contributes to negative charge to, molecule that it is a part of, and potential to react with h20

sulfhydryl -sh

thiols, cross-linking stabilize the protein, and it is structure