Answer:
Questionnaire
Explanation:
A questionnaire is a research tool that is consists of a series of questions and that used for collecting information from the population. It is a kind of written interview conduct by a researcher to the population for gathering information. These are carried out by the researcher's face to face interviews, collection the information through phone or by post. It is a cheap and very quick way to get information. It is not a time-consuming process. Because the researcher need not be there with the participants. There could be a closed question, opened question in the questionnaire.
Answer: A large amount of energy is lost at each level, so there has to be a limit on the number of trophic levels.
Explanation:
Civil Rights Act of 1964 is the forbade workplace discrimination based on race. The arrangements of this social liberties act denied separation on the premise of sex and additionally race in contracting, advancing, and terminating. "Sex" was included at last.
