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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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 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.
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