What is the Earth System?
a. The global interconnecting web of physical and biological phenomena involving the solid Earth, the hydrosphere, and the atmosphere
b. The crust, mantle, and core of the Earth
c. The continental plates and the oceanic plates
d. The rigid lithosphere and the plastic asthenosphere
Answer: a. The global interconnecting web of physical and biological phenomena involving the solid Earth, the hydrosphere, and the atmosphere
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Which type of water pollutant is acid rain?
A. inorganic B. organic C. heavy metal D. plant nutrient
It can be said that amphibian populations are declining worldwide,
a. but only in areas that are greatly disturbed by human activities b. in all areas except in protected wildlife preserves, where they are increasing somewhat c. except in the Arctic where they are surviving okay d. in all areas, even in protected wildlife preserves and parks e. in all areas, except tropical rainforests where the very large populations can withstand some disturbance
Answer the following statement(s) true (T) or false (F)
1. Many early manufacturing centers in the United States grew in already established market centers. 2. The United States has more tornadoes each year than any other country. 3. The delta of the Mississippi is shrinking because of dams along the Mississippi River. 4. The best soils in the United States are in the Southeast. 5. The gap between the materially wealthy and materially poor in the United States is shrinking.
In the tertiary structure of proteins which amino acid is involved in forming covalent bonds?
A) alanine B) aspartic acid C) cysteine D) tryptophan