Correct answer
A. Food chain
Explanation
The correct answer is Food chain.
What is meant by drawbacks?
Components of stream flow: Sources of flow to channel are:
Norman Borlaug, the American agricultural scientist and plant pathologist developed the high yield strains that greatly increased crop yields. He laid the groundwork for the green revolution and was awarded the Nobel Prize for Peace in ________
Examples of regional pollution are:
Survey conducted by WAPDA has revealed that 2.0 M ha of land have become severely waterlogged affecting a population of million:
There are major types of plants used for landscaping are: