Select the correct word given in parentheses tofill in the blanks in the following sentences :(a) Initially, new theories are not acceptedbecause they may not agree with thetheories and the prevailing!social ideas. (past/existing)(b) The use of number system was greatlypopularised by __ _. (Arabs/Europeans)The most distinguishing character betweenthe birds and mammals is!(4-chambered heart/mammary glands)(d) Resources that are exhausted are known asresources. (renewable/non-renewable)The foremost problem associated withmodern agriculture in India is that ofL. (labour/energy)

Select the correct word given in parentheses tofill in the blanks in t

1.	Select the correct word given in parentheses tofill in the blanks in the following sentences :(a) Initially, new theories are not acceptedbecause they may not agree with thetheories and the prevailing!social ideas. (past/existing)(b) The use of number system was greatlypopularised by __ _. (Arabs/Europeans)The most distinguishing character betweenthe birds and mammals is!(4-chambered heart/mammary glands)(d) Resources that are exhausted are known asresources. (renewable/non-renewable)The foremost problem associated withmodern agriculture in India is that ofL. (labour/energy)
Answer» <p>existingEuropeansmammary glandsnon renewable resourcesenergy</p> <p>existingEuropeans. mammary glandsnon renewable resourcesenergy</p> <p>existingEuropeanmammary glandnon renewable resourcesenergy</p>