The first vertebrates to achieve flight were ____________________. Fill in the blank(s) with the appropriate word(s)
pterosaurs
Environmental & Atmospheric Sciences
You might also like to view...
Pictured here is a model of how the atmosphere is heated. Which arrow represents heating of the earth's atmosphere by long wave radiation?
A. infrared energy emitted by land B. insolation reflected by clouds C. energy absorbed by land D. insolation reflected by land
Environmental & Atmospheric Sciences
Oceanic crust generally has a higher density than continental crust.
Indicate whether the statement is true or false
Environmental & Atmospheric Sciences
To be an artesian spring, a spring must _____
a. contain salt water b. flow upward to a level above the local water table c. lie below a cone of depression d. flow for only part of the year e. have been drilled or dug by people
Environmental & Atmospheric Sciences
An ampere is a unit of electrical
A) pressure. B) current. C) resistance. D) all of the above E) none of the above
Environmental & Atmospheric Sciences