According to the article ,which of the following are reasons WHY insecurity is necessary to humans?
1.it provides a sense of caution in the face of potentially unsafe situations.
2.it prevents us from looking stupid in class or getting laughed at by your crush.
3.it allows individuals to get along and work together as part of a larger group.
4.it allows the fulfillment of the human need for community, belonging and love.

During an experiment measuring the change in temperature of a chemical reaction your digital thermometer breaks. you have the same model thermometer available to use how do you proceed with the experiment a. continue on with the new thermometer b. begin the experiment again with the new thermometer c. calibrate the new thermometer and make a notation regarding the change in equipment d. calibrate the new thermometer and begin the experiment again