Sand-sized particles are smaller than silt particles
Indicate whether the statement is true or false
F
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Producing steel from recycled scrap iron uses _______________% less energy than producing steel from virgin iron ore
Fill in the blanks with correct word
Complete the following conversions using exact conversion factors (round your answers to 1 decimal place).
English System Units (a) 3 inches (b) 4.3 feet (c) 18 yards (d) 73 miles (e) 6.2 quarts (f) 10 gallons (g) 14 ounces (h) 155 pounds (i) 47°F S.I. Units (a) __________ centimeters (b) __________ meters (c) __________ meters (d) __________ kilometers (e) __________ liters (f) __________ liters (g) __________ grams (h) __________ kilograms (i) __________°C
Which of the following stream properties tends to decrease downstream?
A) stream power per area of stream bed B) sediment load C) channel width D) slope of channel bed
The greenhouse effect in the atmosphere occurs because
A. Oceans absorb heat, and then release it slowly at night B. Clouds reflect sunlight back into space C. Stratospheric ozone absorbs UV radiation D. CO2, water vapor, methanol, and other gases absorb infrared radiation E. All of these are correct