The class ____________ are the most advanced vertebrate group and include porpoises, dolphins, and whales. Fill in the blank(s) with the appropriate word(s)
Mammalia
Environmental & Atmospheric Sciences
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All of the following were European states in the 1980s. Which continues as a European state today?
A) Hungary B) East Germany C) Yugoslavia D) Czechoslovakia
Environmental & Atmospheric Sciences
True or False: Sedimentary rocks are the most common rocks on Earth's surface
Indicate whether this statement is true or false.
Environmental & Atmospheric Sciences
A volcano that has not erupted for over 10,000 years is not considered to be an active threat
a. True b. False
Environmental & Atmospheric Sciences
An air mass is a mass of air that may extend through the lower half of the troposphere and is homogeneous in terms of temperature and humidity
Indicate whether the statement is true or false
Environmental & Atmospheric Sciences