What is an example of gravitational energy and mechanical energy need now

Witch one is it soo it the the question b.a,b,c,d

How many time zone are there on earth

England is a small country. why is english spoken in so many places worldwide? a. england colonized many places throughout the globe. b. the english language is the easiest language to learn. c. england is located near the prime meridian, making it a popular tourist destination. d. because england is an island nation, it has had many visitors.