Redshift and blueshift show how light shifts to shorter or longer wavelengths as objects in space move closer of farther away from us. People looking at an object that is moving away from them see light that has a longer wavelength than it had when it was produced (a redshift), while people looking at an source coming closer see light that is shifted to shorter wavelength (a blueshift).
The population of the sub Sahara desert will grow in the years to come and has been growing for a while now. I know this because in the graph the line is climbing at the same crate constantly.
Answer:
Heat
Explanation:
As the radioactive materials experience degradation, as underneath the surface in the earth's surface, enormous amounts of heat are generated to send their daughters products.
The correct answer is - B. large empires developed.
The mountains are a natural barrier for lot of human activities, and one of those is the formation of settlements, big countries, or empires. The creation of large empires on a mountainous terrain is extremely hard and unpractical, and there's very few cases in the human history that that has been performed well. The reasons for that is that in the mountainous regions it is hard to create a network of roads, build large settlements, and also there's lack of natural resources and food, so the people had the tendency to create small settlements, or city-states in this kind of circumstances.
This is true, that Colombia is north of Brazil and in actual fact it is NW of Brazil. Colombia and Venezuela are both north of Brazil. Brazil is the largest country in Latin America and forms part of the BRIC countries ie Brazil Russia India China that have a large economic impact on the world.
