General Science

The formula of gypsum is:

Select the correct sequence of organs in the alimentary canal of insects, starting from mouth:
(A) Ileum
(B) Oesophagus
(C) Crop
(D) Pharynx

Match List-I with List-II:

List-I (Term)	List-II (Coined by)
(A) Ecology	(I) Ernst Haeckel
(B) Pheromone	(II) Raymond C. Bushland
(C) Integrated control	(III) Karlson and Luscher
(D) Pest management	(IV) V. Stern

Choose the correct answer from the options given below:

Thermal efficiency of diesel engine is:

The colour of beetroot is attributed to which of the following compound?