ANSWER: Correct Chapter 1 Question 7 Â­ True/False Part A A scientific theory is a tentative or untested explanation that is proposed to explain scientific observations. This preview has intentionally blurred sections.
Gravel /ËÉ¡rÃ¦vÉl/ is a loose aggregation of rock fragments. Gravel is classified by particle size range and includes size classes from granule- to boulder-sized fragments. In the Udden-Wentworth scale gravel is categorized into granular gravel (2 to 4 mm or 0.079 to 0.157 in) and pebble gravel (4 to 64 mm or 0.2 to 2.5 in).
Quick Answer. A cubic yard of gravel covers 324 square feet at 1 inch deep, 162 square feet at 2 inches deep, 108 square feet at 3 inches deep or 81 square feet at 4 inches deep. Each cubic yard is 36 inches long, 36 inches wide and 36 inches tall. Continue Reading.