I believe the answer is: oil and electricity
Answer: Improvements in agriculture.
Explanation:
<span>Assuming that this is referring to the same list of options that was posted before with this question, <span>the correct response would be the one having to do with the fact that ideas are far more easily spread throughout the world due to the spread of technology and the Internet. </span></span>
Life expectancy has gone from 47 to 80
Answer:
Maintained the flow of products to help and support the war effort and decreased the number of Allied ships losses from German attack., The convoy strategy helped protect ships. This meant destroyers capable of sinking U-boats escorted and protected groups of Allied merchant ships.
Explanation:
