Help? Answer in terms of pi.

Atotal of 980 students were asked what their favorite holiday was and 525 students said christmas what percent of students said christmas was their favorite holiday

The biome pictured above is found in areas such as kenya and south africa. the land is grass-covered with very few trees and gazelles and other grazers are common here. why does this biome have a low population of trees? a) large grazing animals destroy the trees. b) it is a deforested rainforest with poor soil. c) it has high temperatures and low precipitation. d) it has a long rainy season followed by flooding.

Why does the blending of many different diciplines present both challenges and opportunities to enviromental scientist?