One of the most severe El Niño events on record began in what year?
A) 1974 B) 1999 C) 2004 D) 1997
D
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Genetic engineers rely on the process of mutation in producing clones of an individual in a population.
Answer the following statement true (T) or false (F)
The current rate of extinction is between _____ and _____ times the rate that existed before humans arrived on Earth
a. 5 and 10 b. 10 and 100 c. 100 and 1,000 d. The rate is the same as it was before humans arrived on earth. e. There is no way to determine the extinction rate before humans arrived on earth, so these numbers cannot be estimated or compared.
What is the second step of the numerical weather prediction process?
A) weather observations B) forecast tweaking and broadcasting C) forecast model integration D) data assimilation E) checking forecast accuracy
Which of these regions is mostly covered with grasslands?
A) llanos of Venezuela B) cerrados of Brazil C) pampas of Argentina D) all of the above E) none of the above