Answer:
D
Explanation:
Because they are all behaviors you choose to do everyday in your life
Iodine solution is used to test leaves for the presence of starch. You need to: heat a plant leaf in boiling water for 30 seconds (this stops its chemical reactions) heat it in boiling ethanol for a few minutes (this removes most of its colour)
Answer:
just drink a lot of water and take a nap if you're not to distracted (;