Atoms of which pair of elements will form ionic bonds in a compound A. I and F
B. Be and Cl
C. Ag and Ca
D. Na and Al

be and ci is correct

Explanation:

a p e x

answer: blah

explanation:

bc blah

ecological efficiency: % of usable energy transferred as

biomass from one trophic level to the next typical is 10% efficient (90% of

energy is lost),is diagramed as the pyramid of energy flow. then osprey eagle

are tertiary consumer and the shrimp are primary consumer, so to balance

mass of shrimp (1/0.1) / 0.1 = 100 kg