Which of these product sources would be your best choice if you wanted to use wood products that were grown and logged in the most sustainable manner?
A. produced from a tree plantation established on already degraded land
B. made from exotic old growth trees logged in the Amazon
C. cut on steep slopes in tropical rain forests in Malaysia
D. harvested by clear-cutting of 90 year old second-growth oak trees that were replanted with pine trees
Answer: B
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Which equation best describes the reaction represented in the illustration above?
A) 2 AB2 + 2 DCB3 + B2 ? 2 DBA4 + 2 CA2 B) 2 AB2 + 2 CDA3 + B2 ? 2 C2A4 + 2 DBA C) 2 AB2 + 2 CDA3 + A2 ? 2 DBA4 + 2 CA2 D) 2 BA2 + 2 CDA3 + A2 ? 2 DBA4 + 2 CA2
The two most abundant gasses in magmas are ____.?
a. sulfur dioxide and carbon dioxide? b. ?water vapor and oxygen c. ?oxygen and carbon dioxide d. ?methane and carbon dioxide e. ?water vapor and carbon dioxide
Water warms and cools much more slowly than land, because it takes more heat to raise the temperature of a given amount of soil 1°C than it does to raise the temperature of water 1°C
a. True b. False
Most of the Earth's cloudiness results directly from ________
A) sublimation B) evaporation C) air pollution D) vertical temperature gradient E) adiabatic cooling