Why are multiple-choice questions used in public opinion polls? a. they are harder for people to answer. b. they are easier for pollsters to measure. c. they allow opinions to be expressed in great detail. d. none of the above

Multiple-choice questions used in public opinion polls because they are easier for pollsters to measure.

Option B

Explanation:

Multiple choice questions are the questions which give different choices to the respondent for a particular question and the respondent has to select any one option from the options provided to that particular question in the whole survey.

Evaluation of the survey which has  multiple choice questions is very easy because there are many methods and machines available for evaluating the multiple choice questions where each option is given certain points and the survey is evaluated on the basis of those points. So it is easier for the pollster to use these.

answer is 1935

because gandhi led a march the sea in 1930 and 5 years later he did it again

radioactive dating, also known as  radioisotope dating  is a process that in  estimating the approximate  age  of  rocks. these data can be analyzed from  the studies dealing with the  decay of the radioactive elements that are present in these rocks. in nature, there are a few types of materials or atoms which are quite unstable and they spontaneously decay or breakdown to form other kinds of atoms.