Suppose you observed emission lines from gas 30 light-years from the center. how would you expect the doppler shifts of those lines to be different, assuming that the gas really is orbiting a supermassive black hole?

Why has Glasgow's economy declined, causing the city to lose nearly a third of its population since the 1960s

over last 250 years the roads change from a single landmass to a number of different consonants one reason for the change is expanding ocean floor what causes Ocean Floors to expand

If the mass of a material is 76 grams and the volume of the material is 22 cm3, what would the density of the material be?

What landforms are made by wind erosion

Which statement about Vietnam, Laos, and Cambodia is not true? a. All three countries were affected by the Vietnam War. b. All three countries have a majority population belonging to the Khmer ethnic group. c.

How are Southern Appalachian (U. S. A.) and Southwestern Caucasus (Russia) forests similar? Question 9 options: A - They are both Southern Hemisphere deciduous forests. B - They are both Northern Hemisphere, warm-temperate forests.

According to the lesson, why was North Africa important to conquering states? It was of strategic military advantage. It was a source of food and trade. It had no importance whatsoever. It possessed many precious metals.

True or False: Magma sometimes forces its way out of the side of a volcano through a (n) vent. If false, what can I change vent to?

Name name four countries south of Mexico

Which explains upwelling in the oceans? a. coastal winds blow cold surface water out to sea. deeper, nutrient-rich, warm water flows upward to replace the surface water. b. wind near the coastline blows warm surface water away from the land.