Which of the following is true about population pyramids

Mount erebus, an active volcano, is located a. in australia's snowy mountains b. on new zealand's north island c. in antarctica d. on melanesia's largest island

Hurry on the map above, arrow 1 points to a region where most people are

Afarmer who is grown corn for the past five years notices in the sixth year that the his harvest is significantly smaller, despite an increase in labor on the farm. the following year, the harvest continue to decline. which of the following explanations most plausibly accounts for the reduction in corn yield? a) soil degradation b) desalinization c) better irrigationd) terracing