Why are the volcanoes of Hawaii shield volcanoes the same as spreading ridges? What will be an ideal response?


The magma is derived from the upper mantle in the oceans and is mafic. The large fluid eruptions
build up the shield volcanoes.

Environmental & Atmospheric Sciences

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Unless checked, population growth tends to continue until it runs up against environmental limits causing poverty, hunger, misery and resource scarcity—eventually leading to a population crash. This view was proponed by which thinker?

a) Thomas Malthus b) Frances Moore Lappé c) Paul Ehrlich d) Julian Simon

Environmental & Atmospheric Sciences

Describe the composition of a cinder cone

What will be an ideal response?

Environmental & Atmospheric Sciences

The form of nitrogen used by plants to produce various amino acids, proteins, nucleic acids, and vitamins is ____.

A. ammonium ions B. nitrogen gas C. proteins D. nitrites E. nitrate ions

Environmental & Atmospheric Sciences

The crust of the Earth is thickest under mountain ranges and thinnest in oceanic areas. Indicate whether the statement is true or false

Environmental & Atmospheric Sciences