In the United States, wood and wood waste could account for 2% of energy use. How many Btus of energy are generated from wood and wood waste? State your assumptions.
What will be an ideal response?
According to Figure 6.8, 98.3 quadrillion Btu was consumed by major sectors in the U.S. in 2014. Therefore, about 2 quadrillion Btu (2% of 98.3 quadrillion Btu) was generated from wood and wood waste.
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Which of the following is NOT one the layers of the Earth based on its chemical composition?
a. Core b. Atmosphere c. Crust e. Mantle
Judge the following sentence according to the criteria given below: Microscopic zooplankton are primary consumers BECAUSE they are herbivores
A) The assertion and the reason are both correct, and the reason is valid. B) The assertion and the reason are both correct, but the reason is invalid. C) The assertion is correct, but the reason is incorrect. D) The assertion is incorrect, but the reason is correct. E) Both the assertion and the reason are incorrect.
When a beam of white light passes through a glass prism, it is separated into its component colors. What is this called?
A) diffraction B) dispersion C) selective scattering D) iridescence
Which of the following is a likely explanation for why there is limestone near the summit of Mount Everest, the tallest mountain on Earth?
A. The limestone forms during metamorphism related to mountain building.
B. The limestone was formed under the pressure of mountain glacial ice.
C. The limestone found at the top of Mount Everest was formed in an ocean.
D. The limestone is the result of an igneous intrusion.