1921. One astronomical unit is the average distance between which bodies?
Earth and the Sun
1922. ……is the total market value of all final goods and services produced by residents in a country or other polity during a given time period minus depreciation?
Net National Product
1923. Longest Railway Bridge?
Huey P. Long Bridge; 7009 m (Metairie; Louisiana; USA)
1924. Alexander defeated the Indian ruler?
Porus
1925. Sumerian civilisation later came to be known as ?
Mesopotamian civilisation
1926. Plant anatomy is the study of ?
Cell and tissue structure
1927. Which king of Travancore setup the Department of Engineering for the first time?
Swathi Thirunal
1928. Mist is a result of which thing?
Condensation
1929. Who is considered as the last of great Pharohs of Egypt?
Ramses III
1930. ORT (Oral Rehydration Therapy) is associated with the treatment of which disease?
Diarrhea