Find the length of the side of a regular octagon which

Which one of the following type of fertilizers has Uranium-238 contamination?

Possession by two or more species of a similar or identical character state that has not been derived by both species from their common ancestor is called

“Regional Centre of International Rice Research Institute” is recently established in India at:

Jute prefer to grow in

Markets classified on the basis of nature of transactions

The bulk density of clay soil is approximately:

Gene for Gene hypothesis was given by

Which one of the following is not a component of ‘disease triangle’

Which among the following irrigation methods involves applying water below the soil surface using a network of perforated pipes?

Which toxic substance is naturally present in watermelon that can be harmful if ingested in large amounts?