List the environmental parameters used in determining the EPD of a product.
What will be an ideal response?
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? Identify and state the historical significance of the Hudson's Bay Company.
What will be an ideal response?
The ill effects of acidity in subsoils can be ameliorated by adding gypsum (CaSO4-2H2O) to the soil surface. Which of the following most likely helps account for this effect?
A) Gypsum stimulates root growth in the surface soil horizons. B) Sulfate ions from the gypsum react with H ions in the subsoil to form H2SO4. C) Calcium from the gypsum replaces hydrogen from colloids in the subsoil thereby increasing the soil pH. D) Gypsum dissolves and leaches downward, increasing the Ca/Al ratio in the soil solution in subsoil layers. E) The gypsum replaces hydrogen from colloids which moves down the profile and decreases the pH of the subsoil layers.
DOT 3 brake fluid can absorb ________ % of its volume of water per year
A) 15% B) 50% C) 2% D) None of these
A gram weighs about the same as a ________
A) Feather B) Paper clip C) Penny D) Dime