Three crops that contribute maximum to global food grain production are :
- Wheat, Rice and Maize
- Wheat, Maize and Sorghum
- Rice, Maize and Sorghum
- Wheat, Rice and Barley
The Correct Option is A
Solution and Explanation
These three crops, wheat, rice, and maize (corn), are among the world's most widely cultivated and consumed staple crops, providing a significant portion of the world's food supply.
So, the correct option is (A): wheat, rice, and maize
Top Questions on Eco-System
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In the equation GPP - R = NPP
GPP is Gross Primary Productivity
NPP is Net Primary ProductivityR here is ________.
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Statement II: Fig wasp and fig tree exhibit a mutual relationship as the fig wasp completes its life cycle in the fig fruit and the fig fruit gets pollinated by the fig wasp. - A wire of resistance \(R\) is cut into 8 equal pieces. From these pieces, two equivalent resistances are made by adding four of these together in parallel. Then these two are added in series. The net effective resistance of the combination is:
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Concepts Used:
Ecosystem
An ecosystem is a structural and functional unit of ecology where the living organisms come in to interact with each other and the surrounding environment.
Structure of the Ecosystem:
The structure of an ecosystem is distinguished by the organization of both biotic and abiotic components. This involves the distribution of energy in our environment. It also comprises the climatic conditions prevailing in that particular environment.
There are two main components of the structure of an ecosystem, namely:
- Biotic Components
- Abiotic Components
The biotic and abiotic components are interconnected in an ecosystem. It is an open system where the energy and components can flow through the boundaries.