Case Study:
Captain Crusoe was stranded on a deserted island and to survive, he needed to obtain fresh water.
To simulate his situation, you will be provided with some materials, and you will need to produce
not more than 10 ml of fresh water. how to make a distillator by using these materials.
200 ml sea water
Aluminum foil (30cm x 30cm)
Cotton gloves x 1 pair
A towel x 1
10g weights x 4
Some nails
500mL Beaker x 1
250mL Beaker x 1
Tripod x1
Bunsen burner x 1
Heat proof mat x 1

For drinking purpose, the sea water is cleaned by removing salts from it.

Explanation:

Place the tripod on a flat surface. Placed the mat on the tripod and Bunsen burner at the bottom of tripod. Take 500 ml beaker and pour 200 ml sea water in it. Placed the beaker on the tripod for heating. Insert the aluminum foil inside the beaker so the salt attached with the aluminium foil and the water is clean from salts. after that the water is poured in another 250 ml beaker and this water is ready for drinking purpose.

the answer is: c. c.it limited the president’s power to start wars.

the war powers resolution of 1973 requires the president to notify the congress whenever the president wanted to order a military operation to other countries within 48 hours. if after being reviewed the congress disagree with the proposal, that the president will be banned from ordering the operation.