Which of the following industries generate non-biodegradable wastes?
1) Cotton mills
(2) Paper mills
(3) Thermal power plants
(4) Textile factories
The IUPAC name of the following compound is:
(b) Order of the differential equation: $ 5x^3 \frac{d^3y}{dx^3} - 3\left(\frac{dy}{dx}\right)^2 + \left(\frac{d^2y}{dx^2}\right)^4 + y = 0 $