Which country was the first to establish a permanent presence in North America?
a. Spain
b. France
c. Great Britain
d. Portugal
e. Belgium
a
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Compare two air parcels at sea level that have the same size but different temperatures. Which of the following describes the colder parcel of air?
A. The pressure is the same, but the density is lower than the warm parcel. B. The pressure is the lower, but the density is the same as the warm parcel. C. The pressure is higher, but the density is the same as the warm parcel. D. The pressure is the same, but the density is higher than the warm parcel.
Which of the following is thought to be liquid?
A) Asthenosphere B) Mantle C) Crust D) Inner core E) Outer core
Isotopes of the same element
A. differ in their chemical behavior. B. have different atomic mass numbers. C. differ in atomic number. D. differ in their number of electrons.
Which of the following is the major concern about climate change if CO2 levels in the atmosphere exceed 450 ppm?
A. the effects would be irreversible B. the earth would erupt into a huge fireball C. all life on the planet would die D. some oil companies will go out of business