What did Darwin suggest the driving force of evolution was?

a. Reproduction
b. Small genetic variation
c. Isolation
d. Large population size


ANS: C
Charles Darwin thought isolation was a key factor in evolution. He observed various finch populations
on separate islands in the Galapagos. He also realized the smaller the reproducing population was, the
faster evolutionary change would occur. Information can be found in the section Understanding the
Ocean Began with Voyaging for Trade and Exploration

Environmental & Atmospheric Sciences

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Most rain at middle latitudes is produced by the ice crystal process. This is because ____

A) clouds in these region have below-freezing temperatures at all levels but experience strong uplifts B) clouds in these regions can extend into regions where air temperatures are below freezing C) ice crystals evaporate more slowly than water droplets in clouds of these regions D) most rain occurs during the winter in these regions

Environmental & Atmospheric Sciences

What is the greenhouse effect? List the greenhouse gases

What will be an ideal response?

Environmental & Atmospheric Sciences

What is one aspect of "neoliberalism"?

A) countries modifying their laws and regulations to encourage transnational operations B) using government resources to increase social benefits, like welfare and workers compensation C) encouraging the export of finished products instead of raw materials D) investing in education in order to build a high-quality work force E) encouraging migration

Environmental & Atmospheric Sciences

Zones of transition, or overlap, between two plant or animal communities are called _______________

Fill in the blank(s) with correct word

Environmental & Atmospheric Sciences