________ are polygonal patterns that form in very fine sediment as it dries.
A. Graded beds
B. Burrows
C. Ripple marks
D. Mud cracks
E. Cross beds
Answer: D
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The oblateness of Earth occurs at the
A) equator. B) prime meridian. C) poles. D) subtropics.
Which of the following powers tropical cyclones?
A) A density-driven circulation that is initiated at the ocean surface by temperature and salinity. B) An apparent force resulting from Earth's rotation that causes particles in motion to be deflected. C) Heat transfer in a gas or liquid by the circulation of currents from one region to another. D) The vast amounts of latent heat as water evaporates and condenses.
High population density can ________
A) decrease biodiversity within a species B) increase the incidence of disease transmission C) hinder organisms from finding mates D) decrease competition E) decrease the use of resources
Covalent bonds differ from ionic bonds in that:a
ionic bonds arise from electrical attraction between positively- and negatively-charged ions. b. covalent bonds arise from the sharing of one or more electrons. c. covalent bonds can occur between atoms of the same element. d. A and B only e. A, B, and C