If the price of 1 gallon of milk is 4.00 and the price of 1 loaf of bread is $2, then what is the opportunity cost of buying 1 gallon of milk with a budget of $4

Which of the following words identify a question as absolute

What are the three stages of volcanic activity? a. active, magma, lava c. extinct, eruption, explosive b. eruption, quiet, explosive d. active, dormant, extinct

In this food web, which group would increase in number if snakes were eliminated? a. producers b. decomposers c. primary consumers d. secondary consumers e. tertiary consumers