Answer:2. Snowball sampling
Explanation: Snowball sampling refers to a research in which once participants behave been recruited for a study they can also recruit other participants that they know. This is useful when it is hard for a researcher to find potential participants. The name of this research comes from the fact that when you roll down the ball made from snow it will pick up some other particles along the way and it will keep getting bigger and bigger.
Well if your adding it, it would be 7.419 had to fix it
Answer:
newly created energy that increased the total energy (thermal energy)
Some factors were the U.S invaded Afghanistan because of 9/11. The U.S invades Iran because of the war on terrorism. It was thought that Iran had weapons of mass destruction. And helping to free the Iraqi people to help them form a democratic country. Hope this helps! ;) <span />
