1. Sarah has decided to increase her workouts. Therefore she has decided that for every day she works out for 60 minutes or more, she will allow herself a special splurge on something during the day. This is an examnle of
Operant or Classical Conditioning ?

24-karat gold is considered to be pure gold. 18-karat gold is considered to be about 75% gold. what is 18-karat gold considered a mixture rather than a pure substance? a) it has a variable composition of other elements and minerals. b) its color is different than pure gold. c) the gold atoms are not arranged in a repeating pattern. d) it can be melted and transformed into a different substance.

What are the basic input of iron and steel industry

Oppression against people who make less money is called