Crotalaria juncea and Alhagi camelorum are commonly used as green manure in crop fields and in sandy soils. These plants have nitrogen-fixing properties, which can help enrich the soil with nitrogen and improve its fertility, making them valuable for agricultural purposes.
So, the correct option is (A): Crotalaria juncea and Alhagi camelorum


Given below are two statements:
Statement I: Transfer RNAs and ribosomal RNA do not interact with mRNA.
Statement II: RNA interference (RNAi) takes place in all eukaryotic organisms as a method of cellular defence.
In the light of the above statements, choose the most appropriate answer from the options given below:
There are several valuable microorganisms that are beneficial to humans in various manners such as: