If a star explodes 15 lightyears away, when will you see the explosion?

The land in Mexico City is sinking. What is the primary cause of this problem? A. deforestation caused by cutting down trees B. too much water being taken from underground aquifers C. too many offices and towers being built in the city D.

List and describe at least four reasons why some countries are rich and some are poor. Long Explanation Required!

Harry is 45 years old and is 60% as old as Patrick. How old is Patrick?

True or false plants in a high latitude receive less direct solar energy during the year than plants at a lower latitude because they are farther from the equator

List 3 penalties that were imposed on China after losing the war?

What do stream terraces represent? Put another way, what were stream terraces before they became a terrace?

The American Revolution inspired the French Revolution. True False

Identify and explain three past or current consequences of the Partitioning of India in 1947.

Why is the black earth region in Russia called Black Earth?

The US counties that border Mexico have an unusually high percentage of people in which age group? A. 0-17 B. 18-39 C. 40-59 D. 60-79