Explain how ozone can have both a beneficial and a detrimental role in the Earth's atmosphere.
What will be an ideal response?
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Areas identified by distinctive characteristics that distinguish them from surrounding areas are known as ____
Fill in the blank(s) with correct word
Toxicologists refer to the total amount of a chemical present in the tissues of an organism as ________
A) toxic content B) threshold content C) biomagnification D) bioaccumulation E) body burden
How is an alluvial fan formed?
A. A landslide blocks the stream, causing sediment to accumulate upstream. B. A stream erodes down through older terraces and entrenched meanders. C. Sediment is deposited by debris flows and streams that decrease in velocity along the mountain front. D. A dam increases the speed of currents below the dam.
The asthenosphere lies entirely within
A. the lithosphere. B. the upper mantle. C. the ocean ridges. D. the lower mantle.