Operant conditioning is teaching someone something using rewards. Every time they do what you want, they get a reward. So in your example, you'd need to break down the toilet training process a bit. First the child needs to figure out that her body is telling her she has to use the bathroom. Then she needs to learn to tell that to you in time to go. Then she needs to actually go.
Answer: Nearly 90% of the igneous rock-forming minerals are silicates; which means that they make up over 90% of the Earth's crust (oxides are the other dominant mineral group).
Explanation:
Each assemblage of silicate minerals tells us something of the environment in which it was formed. The soil, in which we grow our food, is made up largely of silicates. Bricks, stones, concrete, and glass are either silicates or derived from silicates. The time in our computers and clocks is kept by a silicate mineral.
There are a lot of civil wars that started in 1970s
since you provide no options to specify it, i will write some civil wars that started during that period :
- Bangladesh Civil war (Pakistan)
- Cambodian Civil War
- Lebanese civil war
- Afghanistan civil war
hope this helps<span />