There is active volcanism on bodies in the solar system besides Earth but only on other planets.
a. true
b. false
b. false
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Which of these coastal systems is crucial to marine biodiversity, and in tropical areas of the world, serves as a habitat for an astonishing variety of marine animals?
A. coral reefs B. mangrove forests C. coastal marshes D. estuaries
The Caymans have only ________ inhabitants, but there are ________ companies there, including several hundred banks and the world's four largest legal and accounting firms
A) 300,000; 200,000 B) 220,000; 110,000 C) 120,000; 50,000 D) 60,000; 90,000 E) 40,000; 70,000
A soil rich in organic material will be ____
a. black or dark brown b. gray c. red d. yellow
A few individuals of a bird species fly to a small city that previously had no individuals of this species. The immigrant birds find that the city has adequate food and no predators. On average, each bird has four offspring per year and lives for two years. How will the population of birds change over the first few years?
a. The population will grow steadily, gaining a constant number of birds each year. b. The population will grow more and more rapidly with each passing year. c. The population will grow steadily for a few years and then shrink steadily back to zero. d. The population's growth in the first few years will depend on the size of the city.