Which of the following best describes the most common effects of wind on earth's surface?
a. desertification and weathering
b. erosion, weathering, and deposition
c. creation of ventifacts, ergs, and loess
d. deposition of loess and creation of desert varnish

Ammonium perchlorate nh4clo4 is the solid rocket fuel used by the u.s. space shuttle. it reacts with itself to produce nitrogen gas n2 , chlorine gas cl2 , oxygen gas o2 , water h2o , and a great deal of energy. what mass of nitrogen gas is produced by the reaction of 2.1g of ammonium perchlorate?

What is conserved in the reaction shown below? h2(g) + cl2 (g) --> 2hcl(g)a. mass onlyb. mass and moles onlyc. mass, moles, and molecules onlyd. mass, moles, molecules, and volume

What occurs when a cell engulfs large food particals