Answer the following question given this paragraph: The original rock is the source of the inorganic portion of the soil. Mechanical weathering breaks rock into smaller pieces. Chemical reactions change the rock's minerals. Q: Which type of weathering causes changes int he rocks materials, chemical or mechanical? Choices: - liquid - nuclear - mineral - chemical A:
chemical
Answer the following question given this paragraph: Q: Transverse divisions are associated with leaf elongation, and longitudinal divisions are associated with what? Choices: - leaf shedding - leaf multiplying - leaf coloring - leaf broadening A:
leaf broadening
Q: Answer the following question given this paragraph: Wavelength and frequency are defined in the same way for electromagnetic waves as they are for mechanical waves. Both properties are illustrated in Figure below . Q: Wavelength and frequency are defined in the same way for electromagnetic waves as they are for which other waves? Choices: - sonar - light - gravitational - mechanical A:
A: mechanical
Question: Answer the following question given this paragraph: Calculations are described showing conversions between molar mass and density for gases. Q: Calculations are described showing conversions between molar mass and what for gases? Choices: - volume - length - weight - density A:
Answer: density
*Question*
Answer the following question given this paragraph: Molecular formulas tell us how many atoms of each element are present in one molecule of a molecular compound. In many cases, the molecular formula is the same as the empirical formula. For example, the molecular formula of methane is CH 4 , and because 1:4 is the smallest whole-number ratio that can be written for this compound, that is also its empirical formula. Sometimes, however, the molecular formula is a simple whole-number multiple of the empirical formula. Acetic acid is an organic acid that gives vinegar its distinctive taste and smell. Its molecular formula is C 2 H 4 O 2 . Glucose is a simple sugar that cells use as their primary source of energy. Its molecular formula is C 6 H 12 O 6 . The structures of both molecules are shown in Figure below . They are very different compounds, yet both have the same empirical formula, CH 2 O. Q: What simple sugar is the cell's primary source of energy? Choices: - carbon - nicotine - chloride - glucose A:
**Answer**
glucose
(Q).
Answer the following question given this paragraph: Alternative energy sources include wind power, solar power, hydropower, and geothermal power. Q: Wind power, solar power, hydropower, and geothermal power are called renewable sources of energy or what other term? Choices: - mandatory energy - specific energy - conservative energy - alternative energy A:
(A).
alternative energy