In general, what form of transportation was least expensive in the early days of transportation?

A) motor vehicles
B) railroads
C) water
D) air travel
E) horse-drawn cart


C

Environmental & Atmospheric Sciences

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Explain why air temperature measurements must be taken in the shade

What will be an ideal response?

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Hydraulic conductivity is a function of:

a. intrinsic permeability of the material b. fluid viscosity c. porosity d. both a and b

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________ are sedimentary rocks deposited by direct precipitation of minerals from water.

A. Biologic rocks B. Aquatic rocks C. Chemical rocks D. Clastic rocks E. Hydro rocks

Environmental & Atmospheric Sciences

When a country's GDP decreases, the per capita GDP must also decrease.

Answer the following statement true (T) or false (F)

Environmental & Atmospheric Sciences