Compare the three main types of galaxies
What will be an ideal response?
Spiral galaxies are flat, disk-shaped bodies with "arms" extending in a spiral out from the nucleus. Elliptical galaxies are spherical to rugby-ball shaped and include the biggest and smallest galaxies we have identified. Irregular galaxies are the least common, show no symmetry, and may be irregular due to gravitational distortion by a nearby massive body.
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Which of the following factors describes the main cause of erosion of limestone buildings, fountains, and sculptures?
A. acid precipitation B. ozone C. urban heat island D. vibrations caused by automobile traffic
Answer the following statement(s) true (T) or false (F)
1. Europe is largely made up of peninsulas. 2. Europe is a peninsula of the Eurasian continent. 3. European countries are known for their zero population growth. 4. Two of Europe's major industries are automobiles and airplanes. 5. Most of the Eastern European countries adhere to the same religion.
Rainwater causes chemical weathering by
A) adding water molecules to rock. B) applying a force to rock. C) taking minerals out of rock and putting them in solution. D) removing rock's surface layer.
French has become an increasingly important language in the United States because of large-scale immigration from Latin America
Indicate whether the statement is true or false.