What is the MOST important effect of the discovery of rubber?

The first serious accounts of rubber production and the primitive native Americans system manufacture were given in the 18th century by “Charles Marie de la condamine ,A member of a French geographic expedition sent to south America in 1735.La Condamine described “caoutchouc “(the French spelling of native term for( “weeping wood”)as the condensed juice of the hevea tree, and in 1736 he sent rubber samples to Europe.initially the new material was merely a scientific couriosity .come years later British scientist (Joseph Priestley )remarked on its usefulness for rubbing pencil marks from paper ,and so the popular term rubber was coined .other applications gradually developed,notably for waterproofing shoes and clothing .

Explanation:

d

step-by-step explanation:

an inequality is an expression which means more than one number is a solution. we graph the solutions on a number line to show all possible values. we graph using circles and arrows.

this is a filled in circle on -2 so this is . this means only answers c and d are options.

answer d points to the right.