With movement of Gondwana over the South Pole, extensive glaciation occurred during the

a. Carboniferous. d. Silurian.
b. Devonian. e. none of the above
c. Permian


A

Environmental & Atmospheric Sciences

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Dynamic forcing of upper air currents will create

A. upper air convergence at A that results in surface high pressure. B. upper air divergence at A that results in surface high pressure. C. upper air convergence at B that results in surface high pressure. D. upper air convergence at B that results in surface low pressure.

Environmental & Atmospheric Sciences

Eukaryotes are the earliest life forms identified on earth and they date back to nearly 3.5 billion years ago

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

Which of the following statements comparing a tidal power electricity-generating with a conventional thermal power plant is correct?

A) The initial cost of building a tidal power electricity-generating plant may are higher. B) The operating costs of a tidal power electricity-generating plant are higher. C) The periodicity of the tides is an advantage of a tidal power electricity-generating plant. D) Tidal power initially requires fossil or nuclear fuels to get started. E) Conventional thermal power is considered a cleaner and renewable resource.

Environmental & Atmospheric Sciences

"Philological nationalism" is the idea that "mother tongues" have given birth to nations

Indicate whether the statement is true or false.

Environmental & Atmospheric Sciences