Which of these choices is a direct cost of using coal? O A. Human-health concerns
O B. Pollution from burning coal
O C. Coal-miner salaries
O D. Damage to common resources

pls I'm on a quiz and I need this answered quickly please I'll give the person the brainliest ​

Which of the following is a possible reason for sleep? a) growth b)digestive c)speed d)intelligence

Twin boys have girlfriends one of the couples have a baby would the dna of the lil baby be the same as the couples dna bc the boys are identical twins

Which of the following types of stars is most likely to end up as a supernova? in graph a, the curve peaks at 800 nm, in the red section of the visible light spectrum. in graph b, the curve peaks at 550 nm, in the green section of the visible light spectrum. in graph c, the curve peaks at 450 nm, in the blue section of the visible light spectrum. in graph d, the curve peaks at 300 nm, in the violet section of the visible light spectrum. a b c d