During colder climatic periods, the concentration of O-18 in the ocean decreases
Indicate whether the statement is true or false
False
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Which line of evidence was not used by Alfred Wegener to support continental drift?
a. continental fit b. similarity of rock sequences c. continuity of mountain ranges on opposite continents d. fossil evidence e. paleomagnetic data
The abrupt bulge of water driven ashore by a tropical cyclone (hurricane) is called a ________
a. seiche b. standing wave c. storm surge d. tsunami
Ornithine, an amino acid which is not found in proteins, is most similar to which of the following amino acids, all of which are found in proteins?
A) arginine B) cysteine C) lysine D) serine
Many developing countries have economies largely dependent on subsistence agriculture; the vast majority of the population in the Middle East region lives in rural areas
Indicate whether the statement is true or false