Which of the following is true about density and weight?
A. weight depends on the mass of the object and the pull of gravity
B. density is higher if you have a larger volume of the same material
C. a substance is more dense at night than during the day
D. density is lower if you have a larger volume of the same material
E. None of these choices are correct.
Answer: A
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Since 1960, pesticide use has increased ________ worldwide
A) twofold B) fivefold C) sixfold D) fourfold E) threefold
As a region, Africa has the fastest growing population and the youngest population with over 40% of the population under age 15
Indicate whether the statement is true or false
Nonmetallic minerals used for abrasives include ________
A) topaz and fluorite B) talc and gypsum C) apatite and hematite D) corundum and garnet
In general, the healthiest soil texture for plants is one in which
A. clay dominates, sands are next highest in concentration, and silt has the smallest concentration. B. there is a relatively even percentage of sand, silt, and clay. C. sand dominates, silts are next highest in concentration, and clay has the smallest concentration. D. sand dominates, clays are next highest in concentration, and silt has the smallest concentration.