Which of the following is a direct cost of using coal-burning power plants? O A. Reduced local property values
O B. Damage to local ecosystems
O C. Salaries of power plant staff
O D. Pollution caused by burning coal

Can you identify which of the following groups of organisms are, or are not, populations? a. the american bison (bison bison) and grey wolves (canis lupus) currently living in yellowstone national parkb. all of the rainbow trout (oncorhynchus mykiss that) that have ever lived in lake eriec. the group of american bison (bison bison) currently living in yellowstone national parkd. a group of calliope hummingbirds (selasphorus calliope) and a group of rufous hummingbirds (selasphorus rufus) living in the same new hampshire woodse. the northern cardinals (cardinalis cardinalis) living on opposite shores of lake champlain f. all of the whales currently living in the atlantic ocean off cape cod, massachusetts

Which could be a pathway of food through an ecosystem

What are the coordinates of vertex a of square abcd? a (–1, –6) b (–1, –2) c (–1, 6) d (–2, 1)