Me revise this argumentative essay thesis for ap lang?

"while chief joseph did protect his tribe's tradition, his true courage showed when he chose to surrender his beliefs on order to protect the same people from which his tradition rooted."

The arctic is a cold deset biome, which one of the answers is not correct? a) animals in cold deserts burrow to get out of the harsh climates. b) vegetation in cold deserts is normally shallow rooted small shrubs. c) animals in cold deserts hibernate most of the year to get out of the cold. d) soils are very heavy and course. e) the region receives less than 10 inches of precipitation annually.