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)
Which action is an appropiate immediate response to a flood? a. removing wet clothing b. marking flooodwater levels c. avoding crossing flowing water d. walking, no driving, through water