What is the effect of the statement above

From 1990 to 2008, by what percent did the world’s most developed economies cut their greenhouse gas emissions?

What was the difference between bombing military targets in the united kingdom, and bombing the city of london? a. bombing a city kills lots of innocent civilians, bombing a military target doesn't b. bombing military targets didn't force the u.k. to surrender, but bombing london did c. military targets were bombed by japan, while london was bombed by the nazis d. london was bombed before the u.s. entered the war; military targets were bombed afterward

Name three new weapons that changed how ww! was fought and how?