Eras are subdivided into
A. eons
B. epochs
C. periods
D. ages
Answer: C
Environmental & Atmospheric Sciences
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An interrelated collection of plants and animals and the physical environment with which they react is a(n)
A) biome. B) ecosystem. C) biomass. D) biosphere.
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Malaria cannot be transmitted by blood transfusions or by sharing needles
Indicate whether the statement is true or false
Environmental & Atmospheric Sciences
Which chain of volcanic islands are far removed from a plate boundary?
A) Philippines B) Iceland C) Indonesia D) Hawaii E) Japan
Environmental & Atmospheric Sciences
When potassium loses an electron to form K+, which electron is lost?
A) 1s B) 2s C) 3s D) 4s
Environmental & Atmospheric Sciences