In water, an increase in salinity results in a(n) ________ in heat capacity and a(n) ________ in freezing point
a. decrease; increase
b. increase; increase
c. decrease; decrease
d. increase; decrease
c
Environmental & Atmospheric Sciences
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Which of the following is the primary composition of a funnel cloud?
A. hail B. dust and dirt from the ground C. raindrops D. cloud droplets
Environmental & Atmospheric Sciences
An unknown mineral sample scratches fluorite but cannot scratch apatite. What is the approximate hardness of this mineral?
A. 4 B. 3.5 C. 5 D. 4.5
Environmental & Atmospheric Sciences
Species that provide early warnings of damage to a community or an ecosystem are called ____ species.
A. foundation B. indicator C. keystone D. endemic E. endangered
Environmental & Atmospheric Sciences
By Earth's history standards, the Grand Canyon is ________
A) not important B) as old as the Earth C) very old D) youthful E) becoming a first-order landform
Environmental & Atmospheric Sciences