The unit 1 ppm is equivalent to which of the following?

A) 1000 ppb
B) 0.0001%
C) both a and b
D) neither a nor b


C

Environmental & Atmospheric Sciences

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Most precipitation falling on terrestrial ecosystems becomes surface runoff, flowing into streams, rivers, lakes, wetlands, and oceans.

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

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What is its elevation?

Perform a web search to determine the highest point in your state. Then, use the map to determine its elevation in meters.

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Why do the tails of comets point away from the Sun?

What will be an ideal response?

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Tropical storms and associated floods have greater impacts in poor countries that have experienced ________

A) deforestation B) hurricanes C) soil erosion D) desertification E) forest fires

Environmental & Atmospheric Sciences