Develop cost-efficient methods to use solar energy
Improve fuel efficiency in automobiles
Increase the use of wind power
Reduce the use of coal and oil
Hope this helped!!
If your question is:
What was the reason behind the incident described in this passage?
a. Ethnic conflict in the Ottoman empire
b. Extreme militarism in Germany
c. Serbian nationalism
d. Economic competition between France and Germany
I think the answer is d. Economic competition between France and Germany.