Sidak,when visiting a supermarket,was surprised to see yellow,green,and red-coloured capsicum available in the stalls. It was a drastic change in the quality and quantity of capsicum.
$(a)$ What is this change due to?
$(b)$ How are such crops produced?

(N/A) The drastic change is due to the development and cultivation of genetically modified crops or improved varieties through plant breeding techniques.
$(b)$ Such crops are produced by introducing a specific gene that provides the desired characteristics (such as colour,pest resistance,or shelf life) into the plant genome,or through selective breeding and hybridization processes.