What is the cold water phase of ENSO?
A. the Walker Circulation
B. El Niño
C. La Niña
D. the PDO
E. the NAO
C
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The soil horizon which includes incompletely weathered bedrock shards and perhaps the weathered upper surface of the bedrock is called the ______ horizon
a) A b) B c) C d) E e) O
Which of the following organizations were conceived to promote development after and to avoid a repetition of the disastrous economic policies that contributed to the Great Depression?
A) the IMF and the World Bank B) the UN and the WTO C) the WTO and the World Bank D) the UN and the World Bank E) WHO and the WTO
Which of the following best explains a population pyramid (age-sex pyramid) that looks like an umbrella, with very narrow cohorts at the bottom that widen broadly near the top?
A) The population pyramid is upside down.
B) The population is a retirement village.
C) The population is a college town.
D) Migrants are dominant in the community.
E) The population has an open-door migration policy.
Ethers react readily with which of the following?
A) H2 B) most acids C) potassium dichromate D) none of these