Which of the following is NOT a main group of chemical elements on the Periodic Table?
A. sulfides
B. transition metals
C. noble gases
D. nonmetals
Answer: A
Environmental & Atmospheric Sciences
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Which best describes the Green Belt Movement?
A. a tree planting initiative in Africa B. a karate club In Asia C. a hiking association in Colorado D. a soil protection group in India
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The average user in Germany upgrades their cellphone every (almost) 4 years, and every 6 1/2 years in Brazil. In the U.S., the average user upgrades their cell phone every
A) less than 2 years. B) 4 years. C) 6 years. D) more than 8 years.
Environmental & Atmospheric Sciences
How many degrees of longitude equals one hour of time?
a. 15? b. 24? c. 25? d. 45?
Environmental & Atmospheric Sciences
RNA polymerase II (pol II) catalyzes the formation of which type of RNA?
A) mRNA B) rRNA C) snRNA D) tRNA
Environmental & Atmospheric Sciences