How do the giant sequoias live for thousands of years?
A There are vitamins in the soil
B Exercise
C They’re fire-resistant
Sequoias have adapted to live with periodic wildfires. Their bark is up to 18 inches thick and full of fire-resistant tannins, which protect the more vital inner parts of the trees from the heat of a fire. The trees also benefit when wildfires enrich the soil for sequoia seeds to more easily germinate—and because the fires burn off much of the undergrowth, the sequoia saplings that spring up have less competition for sunlight.
The correct answer is They’re fire-resistant.