At what two stream profiles would overall stream velocity be greatest at the center of the profile?





A) A and C

B) B and D

C) C and D

D) D and A


B) B and D

Environmental & Atmospheric Sciences

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A wave oscillates up and down two complete cycles each second. If the wave travels an average distance of 6 m in 1 s, its wavelength is

A) 0.5 m. B) 1 m. C) 2 m. D) 3 m. E) 6 m.

Environmental & Atmospheric Sciences

What is the source of the pollution causing the dead zone in the Gulf of Mexico?

What will be an ideal response?

Environmental & Atmospheric Sciences

If one were to map a vertical profile of groundwater resources, which of the following is correct order from top to bottom of an unconfined aquifer?

A) zone of aeration--water table--zone of saturation--impermeable rock B) zone of saturation--water table--zone of aeration--impermeable rock C) zone of aeration--zone of saturation--water table--impermeable rock D) water table--zone of aeration--zone of saturation--impermeable rock E) impermeable rock--zone of aeration--water table--zone of saturation

Environmental & Atmospheric Sciences

What are the dark areas of the Moon interpreted to be?

A. rocks that are dark and fine-grained because they were smashed by many impacts B. dark-colored sediment that filled in low areas C. large areas covered by basalt D. large areas of the iron-oxide mineral hematite

Environmental & Atmospheric Sciences