What are persistent pollutants?
What will be an ideal response?
They are substances that break down very slowly after being released into the environment and can last for a very long time.
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Geologists gain understanding of the formation of magma and igneous rocks by making field observations, geochemical analyses, and laboratory experiments. Give an example of each
What will be an ideal response?
According to the following reaction, which molecule is acting as an acid? H3O+ + HSO4- ? H2O + H2SO4
A) H2SO4 B) H2O C) H3O+ D) HSO4- E) none of the above
Use the soil texture triangle to name the following by its correct texture class (named on Figure 28.2):
a) 17% sand, 28% silt, 55% clay:
b) 31% sand, 55% silt, 14% clay:
The process of breaking down rocks at Earth's surface into smaller pieces is called ________
Fill in the blank(s) with the appropriate word(s).