Small streams with no tributaries are:
a. first order
b. second order
c. third order
d. trunk streams
a
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The two chemical forms of matter are elements and compounds
Indicate whether the statement is true or false
In trying to find an unfamiliar place by referring to familiar places when driving, you are using the concept of ________
A) place B) location C) situation D) distance E) GPS
(a) Two minerals that crystallize from common magmas are olivine (Mg2SiO4) and quartz (SiO2)
If a magma liquid is getting enriched in Si and depleted in Mg as it cools and starts to crystallize, which of these minerals crystallizes first? Hint: use the mineral formulas to help explain your answer. a) Olivine crystallizes first b) Quartz crystallizes first (b) Explain your reasoning behind the answer you selected:
The high price of food on the global market is closely related to
A) the increased use of fertilizers and the rising cost of fossil fuels to produce them. B) the increased use of biological control and other sustainable agricultural methods. C) the cost to construct and use modern forms of irrigation. D) the cost of remediation to restore degraded soils to usable conditions.