The First Attempt to Map the Galaxy Via Star Counts

question 81

Multiple Choice

The first attempt to map the Galaxy via star counts was done by:

• A)Galileo in 1612.
• B)William Herschel in the late eighteenth century.
• C)Edward Barnard with long exposure photos about 1900.
• D)Harlow Shapley with the RR Lyrae variables in 1920.
• E)Edwin Hubble with the new 100" Mt. Wilson telescope in the 1930s.

Identify and describe major biomes, including their climate, vegetation, and geographic distribution.

Analyze the impact of human activities on different ecosystems and biomes.

Explain the processes leading to lake stratification and the seasonal changes in temperate lakes.

Understand the concept of biodiversity and the factors contributing to it in various biomes.

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