Easing [2]
d) The table below shows some data on bird numbers.
Average Concentration of Neonicotinoid in
Surface water in ng/ml:0 10 20 30
Number of Visiting Birds:
12000 11988 11650 11600
Calculate the percentage decrease in the bird population when levels of neonicotinoids
reach 30ng/ml.
Show your working and give your answer to two decimal places.
[2]

carbohydrates: (starches and sugars) composed of carbon, hydrogen, and oxygen.

lipids: (fats, oils, and waxes) are made of carbon and hydrogen atoms.

nucleic acids: contain hydrogen, oxygen, nitrogen, carbon, and phosphorus. they are polymers of nucleotides. a nucleotide has three parts, a 5-carbon sugar, a phosphate     (-po⬇️4) group, and a nitrogenous base.

proteins: made up of nitrogen, carbon, hydrogen, and oxygen. they are polymers of amino acids.

carbon

explanation:

supercell thunderstorms are perhaps the most violent of all thunderstorm types, and are capable of producing damaging winds, large hail, and weak-to-violent tornadoes

ask your friends for what they got then copy it down if you don't have any friends which is fine than google it or pay the teacher