Firstly the United States of America told the president of USSR that they were getting wrongly involved with Afghanistan and they should immediately withdraw. On falling in deaf ears, the United States did not participate in 1980 Summer Olympics that was held in Moscow. After this the United states started supplying arms to the various Afghan resistance groups.
Answer:
a. sham lesion control group.
Explanation:
The experimenter will need to conduct a sham or placebo surgery or in simple words a fake surgery or radio frequency lesion on the rats in the control group. This will look like radio frequency lesion to the control group but in actual will be done just to induce the sham or placebo effect for studying the changes in emotional behavior to the lesion. Hence, the experiment will require a sham lesion control group.
Answer:
Hand washing has external health benefits, helping prevent the spread of communicable diseases. If a program were somehow devised so that people received a small reward every time they washed their hands, we would expect the frequency of hand washing to increase.
Explanation: People who are given something (A reward of some sort) are proven to do something more, (in this case washing their hands more), or better then they would do without a source of motivation.
This is an opionic quiestion. to some people, it is because they dont want to be aroound people who lie or who are crazy and weird.