In the northern plains of Bihar, particularly in the Kosi-Gandak interfluve, the primary driver of soil degradation is waterlogging (locally associated with 'Chaur' formation). Which of the following physical and anthropogenic factors is the most critical driver of this phenomenon?
Options:
- A: High rate of wind erosion during the summer months stripping the topsoil.
- B: Seepage from unlined canals combined with flat topography and impermeable clay pan in the subsoil.
- C: Excessive application of chemical fertilizers leading to structural collapse of sandy soils.
- D: Tectonic upliftment of the Himalayan foothills causing sudden drainage reversals.
Related Practice Questions:
- Let $S_1$ and $S_2$ be two disjoint, non-empty convex sets in $\mathbb{R}^n$. Under which of the following conditions is there guaranteed to exist a hyperplane that strictly separates $S_1$ and $S_2$?
- Let the primal linear programming problem be: Maximize $Z = c^T x$ subject to $Ax \le b, x \ge 0$. If this primal problem has an unbounded optimal objective value, then which of the following statements is always true regarding its dual problem?
- Let $S = \{(x, y) \in \mathbb{R}^2 \mid x^2 + y^2 \le 9\}$ be a convex set in $\mathbb{R}^2$. The set of all extreme points of $S$ is given by:
- In a linear programming problem with $3$ independent equality constraints and $5$ variables (including slack/surplus variables), what is the maximum possible number of basic solutions?