Large increases in which of the following gases would lead to a changing global climate?
A. methane
B. argon
C. helium
D. nitrogen
Answer: A
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What is the result of using a pay-as-you-throw approach in San Francisco, California, USA?
A. The city lost 37 garbage pickup workers. B. The city raised its taxes as a result of stringent recycling requirements. C. The city recycled, composted, or reused 80% of its municipal solid waste (MSW). D. The city created a severe littering problem. E. The city became the most expensive place to live in the United States.
Both sphenopsids and lycopsids were important members of the Pennsylvanian forests
a. True b. False
Hail formation
A) requires a strong updraft. B) typically results in several layers on a hailstone. C) requires a hailstone to make vertical loops within a cumulonimbus cloud. D) all of the above E) none of the above
What is a common important adaptation to life on a shore of unconsolidated sediments?
a) filter feeding b) burrowing in the sediment c) methods of attachment to a shifting sand bottom d) breathing water with a heavy suspended sediment load e) ability to live in brackish water