Which of these statements best explains why there are different star charts for the same location on earth? (2 points)
a. a single star chart shows location of stars only in one direction.
b. the north star changes its position rapidly at the same location.
c. rotation and revolution of earth causes changes in star positions.
d. the ecliptic plane moves with respect to the stars due to planetary motion.

What is the reason for the “scramble for africa”?

Paraguay is one of the only two countries in the americas that don't have a coastal border. the country is slightly smaller than california. it was under a military dictatorship for 35 years, ending in 1989; today it is a constitutional republic. most of the population is roman catholic, and over 60% of the people live in cities. its environment is threatened by deforestation and water pollution. which of the following facts from the paragraph above best describes an element of paraguay's culture? (apex)

Liquefaction is a. a quicksand-like condition arising in some wet soils during earthquakes. b. flooding caused by tsunamis. c. flooding of coastal areas due to tectonic subsidence. d. flooding caused by dam failure resulting from an earthquake.