1.Density of the material building the raft must be lower than the water.
<span>2. Material must not react with water. </span>
<span>3.Material must have high strength. </span>
<span>4.Raft must be wide in-order to avoid drawing in the river.</span>
Blood
I learned this in anatomy, and I've taken it twice
Electrons that are the highest energy level is called Valence Electrons
B damage the protective layers of the artery walls, which can intimately lead to heart disease.
Answer:
12.72 sec
Explanation:
The time it takes to travel a certain distance can be found by dividing the distance that needs to be travelled by the speed with which you are travelling, therefore...
