How are sea cliffs eroded? What will be an ideal response?
Sea cliffs are pounded by waves (hydraulic action) or worn by the impact of sand and gravel
(abrasion).
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Discuss the influence of the relative masses and distance between the two objects on tide-generating forces
What will be an ideal response?
Which of the following factors would explain the seemingly irrational behavior of a father who smokes (high-risk factor for baby) but throws away his baby's teething rings that may contain phthalates (seemingly low-risk factor for baby)?
A. News media can give a biased view of hazards. B. Most people do not understand the concepts of probability. C. People tend to downplay risks that are associated with activities they are committed to or enjoy. D. People tend to have an irrational fear of certain technologies that are not as well understood. E. All of these factors can lead to the relatively irrational behavior demonstrated by the father.
Rocks show positive magnetic anomaly when:
a) They record the normal polarity b) They record reverse polarity c) They contain unusually high amounts of magnetic minerals d) They contain unusually low amounts of magnetic minerals e) they have a certain chemical composition
The adaptive radiation of mammals began following the Mesozoic extinctions Indicate whether the statement is true or false