Describe the Burgess Shale environment and biota. What controversies are presently part of the
discussion of this biota? What will be an ideal response?
The fossils preserved in the Burgess Shale of Canada represent our most complete record of
Cambrian life. These fossils represent soft-bodied fauna and flora. One of the controversies
surrounding the Burgess Shale fossils is whether they are related to present-day marine phyla.
Thus, the Burgess Shale organisms have been classified and re-classified at various times.
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Which of the following gases is a volatile organic compound otherwise known as a hydrocarbon?
A. sulphur dioxide B. carbon dioxide C. methane D. ozone
Soils formed from loess tend to be infertile
Indicate whether the statement is true or false
When measured by absolute external debt, which countries/regions below have the largest debts?
A) Africa (both North Africa and Sub-Saharan Africa) B) Australia, United States, Western Europe C) Middle East D) South America E) South Asia
Do you think that incentive programs like the Conservation Reserve Program are an effective way to promote sustainable land use?
a. Yes. Such programs take marginal crop land out of production to provide substantial environmental benefit. b. Absolutely. Farmers receive financial rewards for playing an active role in conservation. c. No, it’s not enough. When food prices rise, farmers take the land out of such programs and return it to cropland. d. I don’t think that government should meddle with agriculture.