To what does the title of Rachel Carson’s book Silent Spring refer?
What will be an ideal response?
The loss of the songs of birds as a result of pesticide contamination.
Environmental & Atmospheric Sciences
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Which rock type makes up approximately 90% of the Earth's crust
A) sedimentary B) metamorphic C) igneous
Environmental & Atmospheric Sciences
Slash-and-burn farming occurs in steppe climates
Indicate whether the statement is true or false
Environmental & Atmospheric Sciences
Which atmospheric phenomenon below is produced by the diffraction of light around small water droplets?
a. ?halo b. ?inferior mirage c. ?corona d. ?Heiligenschein e. ?sun pillar
Environmental & Atmospheric Sciences
Approximately what percentage of plant starch is amylopectin?
A) 10 to 15% B) 20 to 25% C) 75 to 80% D) 85 to 90%
Environmental & Atmospheric Sciences