The book "on the origin of species by means of natural selection" was written by
Answer : B. Darwin
Which one the following is a true statement?
Answer : D. Man appeared 6 million years after dinosaurs were extinct
In petrol,lead is not added now a days. This is because
Answer : A. Lead is toxic to our organs.
Which of the following are Biotic Components categories?
Answer : D. All the above
The path of energy transfer from one organism to another in a single direction is called
Answer : B. Food Chain
Which of the following is Food chain in a grassland?
Answer : A. Paddy-> Mouse-> Sanke-> Eagle