When rocks are exposed to heat, they blank , which contribute to thermal stress

My question says on my assignment. read the following scenarios and decide which of the properties of life are being described. the first one is. katherine stopped on the way to school to grab some donuts. 2. because a dog cannot sweat, it has to pant in order to stay cool. 3. an elephant trun had no bone but 4,000 muscles. i have no idea what i am supposed to anwer. i can't find the answer in my notes or book that i can understand anyway

This part insulates the reaction chamber from the transfer of heat to or from the surrounding environment

Long term exposure to waves can cause sunburns and skin cancer.