Step 1: Basic Understanding
The term "sustainable development" combines two important ideas:
Step 2: UN Brundtland Commission Definition
The most widely accepted definition was given in 1987 by the World Commission on Environment and Development (Brundtland Commission): \[ \text{Sustainable Development} = \text{Meeting the needs of the present} \; \text{without compromising the ability of future generations}. \]
Step 3: Key Dimensions
Sustainable development rests on three pillars:
Hence, sustainable development is a holistic approach that balances environmental protection, social well-being, and economic progress for both present and future generations.
Read the following statements: Assertion (A) and Reason (R). Choose the correct alternative from those given below:
Assertion (A): India could not develop a sound Industrial-base during the British rule.
Reason (R): Britishers followed restrictive trade policies, which strengthened Indian handicraft industries.
Here are two analogous groups, Group-I and Group-II, that list words in their decreasing order of intensity. Identify the missing word in Group-II.
Abuse \( \rightarrow \) Insult \( \rightarrow \) Ridicule
__________ \( \rightarrow \) Praise \( \rightarrow \) Appreciate
Eight students (P, Q, R, S, T, U, V, and W) are playing musical chairs. The figure indicates their order of position at the start of the game. They play the game by moving forward in a circle in the clockwise direction.
After the 1st round, the 4th student behind P leaves the game.
After the 2nd round, the 5th student behind Q leaves the game.
After the 3rd round, the 3rd student behind V leaves the game.
After the 4th round, the 4th student behind U leaves the game.
Who all are left in the game after the 4th round?

The 12 musical notes are given as \( C, C^\#, D, D^\#, E, F, F^\#, G, G^\#, A, A^\#, B \). Frequency of each note is \( \sqrt[12]{2} \) times the frequency of the previous note. If the frequency of the note C is 130.8 Hz, then the ratio of frequencies of notes F# and C is: