. You are very thirsty. You go to a nearby stream and collect some water in the small metal cup you have in your backpack. How long should you boil the water?

a. 15 minutes

b. 1 minute

c. A few seconds

d. It depends on the altitude.

You are very hungry, so you decide to eat what appear to be edible berries. When performing the universal edibility test, what should you do?

a. Do not eat for 2 hours before the test.

b. If the plant stings your lip, confirm the sting by holding it under your tongue for 15 minutes.

c. If nothing bad has happened 2 hours after digestion, eat half a cup of the plant and wait again.

d. Separate the plant into its basic components and eat each component, one at a time.