Arrange the following incident in a sequential order in the context of man made global warming.

(A) The atmospheric concentrations of carbon dioxide and $CH_4$ have increased
(B) Burning of fossil fuels and deforestation
(C) Gradual increase in the average temperature of the earth's lower atmosphere
(D) Melting of polar ice with a resulting rise in sea level and coastal flooding

Choose the correct answer from the options given below:

(B), (A), (C), (D)

The correct answer is Option (3) → (B), (A), (C), (D)

To arrange the incidents in a sequential order in the context of man-made global warming, we can follow the logical flow of events:

1. (B) Burning of fossil fuels and deforestation: This is the initial action that leads to increased greenhouse gas emissions.
2. (A) The atmospheric concentrations of carbon dioxide and CH4 have increased: As a result of burning fossil fuels and deforestation, the concentrations of these gases rise in the atmosphere.
3. (C) Gradual increase in the average temperature of the earth's lower atmosphere: The increased greenhouse gases lead to the warming of the atmosphere.
4. (D) Melting of polar ice with a resulting rise in sea level and coastal flooding: The warming causes polar ice to melt, contributing to rising sea levels and flooding.