Non-native invasive species increase the biological diversity of an ecosystem.
Answer the following statement true (T) or false (F)
False
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What do excess organic wastes and plant nutrients deplete from water?
A. nitrogen B. oxygen C. particulate matter D. minerals E. iron
Hydrocarbons
A) typically contain other elements besides carbon and hydrogen. B) occur only in particulate forms. C) are released into the atmosphere primarily through natural processes. D) cause substantial health problems in cities with high levels of air pollution.
The IPCC Fifth Assessment Report concludes
A) humans are likely (99% certainty) responsible for the climate changes since 1950. B) no consensus on recent climate trends exists; some maintain it is mostly human-caused, others maintain it is natural fluctuations. C) that while climate change is occurring, it is largely natural climate fluctuations. D) it is highly doubtful that recent climate trends represent anything more than a temporary perturbation in the long term climate signal. E) general circulation models (GCMs) have too much uncertainty to use them in assessing anthropogenic and natural climate change.
Which of the following is essential in order for petroleum to accumulate in a trap?
A. all of the answers listed here. B. the source rock must generate hydrocarbon molecules. C. a low permeability cap rock that prevents the escape of hydrocarbons. D. hydrocarbons must migrate from a source rock. E. a porous rock to store the hydrocarbon molecules.