South Africa, it's a city in India
B. Crystal size is a function of cooling time. The longer a melt cools the larger the crystals.
A. Singapore
The answer above is correct.
Singapore is a highly developed<span> first world city-state.</span>
Well Southeast Asia has lots of islands. So Many ships have to pass from southeast Asia. Many Chinese and Japanese goods go across southeast Asia to Reach Europe. So many of the Southeast Asian countries take advantage of the trade and built many ports. And It helps their economy grow. Just look at Singapore. Singapore is a country the size of one city. But since it location(south east asia) It more of a city port and it one of the wealthiest country in all of Asia.
about 8000 m/s
It so happens that the vertical distance that a horizontally launched projectile would fall in its first second is approximately 5 meters (0.5*g*t2). For this reason, a projectile launched horizontally with a speed of about 8000 m/s will be capable of orbiting the earth in a circular path.
