Give two examples of how humans are disrupting the carbon cycle and explain why the carbon cycle cannot return to normal on the scale of tens or hundreds of years.
What will be an ideal response?
1. We clear trees and other plants, which absorb CO2 through photosynthesis, faster than they can grow back.2. We add large amounts of CO2 to the atmosphere by burning carbon-containing fossil fuels and wood. These fossil fuels take a long time to recycle, sometimes millions of years.
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Braided streams are commonly formed at the end of glacier
Indicate whether the statement is true or false.
Explain how globalization may lead to the homogenization of cultures
What will be an ideal response?
The primary aim of the Safe Drinking Water Act is to ____.
A. set standards for pollution levels B. require screening of new products for safety and setting standards C. encourage resource conservation D. set aside or protect certain species, resources, and ecosystems E. require evaluation of the environmental impact of an activity proposed by a federal agency
What type of foliation results from the parallel alignment of abundant, coarse-grained, mica flakes in a metamorphic rock?
A. Phyllitic structure B. Schistosity C. Slaty cleavage D. Gneissic banding