FREE AND STUDY GAMES ABOUT SCIENCE FINAL EXAM

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FREE AND STUDY GAMES ABOUT SCIENCE FINAL EXAM

QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -102 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: periods of mass extinction as evidenced in the fossil record may have been caused by

Answer:

periodic asteroid or comet impacts and plate tectonics and fusion of continents Question 2: the largest source of anthropogenic greenhouse gases in the US is_____ followed by _____

Answer:

electricity generation, transportation Question 3: Water ____ (A) more dense as a solid (B) molecules are non cohesive (C) can hold many molecules in solution (D) changes temperature rapidly

Answer:

C

Question 4: what is a growing concern related to sea level rise?

Answer:

eroding shorelines in coastal areas

Question 5: the US senate has so far opposed emissions reductions on the grounds that____

Answer:

it might hurt the economy

Question 6: density dependent factors

Answer:

include the effects of disease, predators, and food on a single species within a community

Question 7: the most severe mass extinction

Answer:

end of permian

Question 8: in relation to natural selection, evolution is the

Answer:

outcome

Question 9: when using relative dating what evidence is most important

Answer:

the position of fossils in sedimentary rock layers Question 10: Positive feedback loop? (A) drives a system toward an extreme (B) It stabilizes the system

Answer:

A Question 11: Plants depend on what to make nitrogen available to them so they can incorporate nitrogen into organic compounds? (A) animals (B) bacteria

Answer:

B

Question 12: New renewables are

Answer:

solar, wind geothermal

Question 13: a coyote can alter its diet to match seasonal abundance of plants, fruits, or small animals and would therefore be considered

Answer:

a generalist (flexibility)

Question 14: most common rock type at earth's surface

Answer:

sedimentary

Question 15: carbon sequestration

Answer:

involves converting carbon dioxide gas to a liquid form for storage in the ocean or underground

Question 16: demographic transition

Answer:

the declines in death rates followed by decline in birth rates, occurring as a country economically develops Question 17: in the near future, the benefits of biofuel production may be enjoyed while reducing the impact on the global production of grain. one such promising approach is to ____

Answer:

produce biofuels from gasses instead of corn

Question 18: variation in a pop

Answer:

caused by mutation, arise from recombo of genes during sexual reproduction, are essential to the natural selection process Question 19: the major long term global problem with using coal to generate electricity is the

Answer:

effect of released carbon dioxide on global climate

Question 20: carrying capacity of a pop is determined by its

Answer:

limiting resources

Question 21: melting of rocks = (A) sedimentation (B) metamorphism (C) magmatism

Answer:

C

Question 22: which of the following is a type of new renewable energy

Answer:

wind power

Question 23: species

Answer:

group of similar organisms that can mate with one another and produce offspring Question 24: the primary motivation to develop the new renewable energy sources comes from

Answer:

concerns over diminishing fossil fuel supplies and negative environmental impacts of fossil fuel use Question 25: methods used by geologists to determine the general sequence of geological events from oldest to youngest are known as

Answer:

relative dating

Question 26: an example of an ecosystem

Answer:

pond

Question 27: ___ drives TFR down social

Answer:

social and economic security

Question 28: What is an entropy?

Answer:

a measure of the amount of disorder or randomness in a thermodynamic system