2. an air mass entering alaska from the northern pacific ocean would most likely be labeled on a weather map as

Which of the following will not cause mass extinction? a. drastic change is weather b. geological change c. both a and b d. none of the above

The leopard frog and the pickerel frog are two closely related species. in areas where their ranges overlap, the frogs will remain separate species if they

With the word calcite wich completes the analogy mineral, erosion, marble, or aragonite