Interpret the given picture and explain any one strategy to control it from becoming an ecological disaster.

The picture depicts industrial pollution, including air and water contamination, contributing to environmental degradation.
Strategy to Control: Implement strict pollution control regulations for industries. Promote the use of clean and renewable energy sources to reduce carbon emissions. Establish waste management systems for industrial discharge. These strategies ensure sustainable industrial development while preserving the ecological balance.

Draw a rough sketch for the curve $y = 2 + |x + 1|$. Using integration, find the area of the region bounded by the curve $y = 2 + |x + 1|$, $x = -4$, $x = 3$, and $y = 0$.
Study the given molecular structure of double-stranded polynucleotide chain of DNA and answer the questions that follow. 
(a) How many phosphodiester bonds are present in the given double-stranded polynucleotide chain?
(b) How many base pairs are there in each helical turn of double helix structure of DNA? Also write the distance between a base pair in a helix.
(c) In addition to H-bonds, what confers additional stability to the helical structure of DNA?
