ANS:B - Only assumption II is implicit

Explanation: The statement mentions that only those students are to be helped who are filling up the form for the first time. This does not mean that the form is complicated/So, I is not implicit. However, II follows from the statement and so is implicit.

ANS:D - 6 1

No answer description is available. Let's discuss.

ANS:D - m⁴

For Rectangle M.I. = b*d^3 / 12.

Where b= width of rectangle & d= depth of rectangle,
so, S.I. unit of width and depth are mm or m or cm etc.
Hence, m*m^3 = m^4.
So, our answer is m^4. Example: for a rectangle, a moment of inertia I = (bh^3) /12.

Breadth b's dimension will be in m or mm or cm.

Height h's dimension also will be in m or mm or cm (in cube).

Hence, the answer is (units' product) m * m^3 = m^4.

ANS:C - request to send

No answer description is available.

ANS:C - frother

Pine oil used in froth flotation technique acts as a frother.

Explanation:

• Froth Flotation Technique: Froth flotation is a widely used method for separating valuable minerals from ore. It relies on the differences in hydrophobicity (ability to repel water) between minerals.
• Role of Pine Oil: Pine oil, or pine essential oil, is commonly used as a frother in froth flotation processes. Its main function is to create and stabilize a froth layer on the surface of the flotation cell to enhance the separation of hydrophobic mineral particles from hydrophilic ones.
• Other Reagents:
  • Collector: A collector is a chemical agent added to enhance the attachment of hydrophobic particles to air bubbles, aiding in their recovery.
  • Modifier: Modifiers are chemicals that alter the surface properties of minerals to improve flotation efficiency.
  • Activator: Activators are used to enhance the reactivity of certain minerals, making them more responsive to flotation reagents.

ANS:A - China

The upcoming Asian Para Games 2023 will be held in Hangzhou, China, from October 22 to October 28. It will be the fourth edition of the multi-sporting continental event, organized by the Asian Paralympic Committee.

ANS:B - India

The President of India approved 412 Gallantry Awards for Defence personnel.

ANS:B - North Korea

North Korea locked down its capital city, Pyongyang, over a "respiratory illness".

ANS:D - North Korea

North Korea imposed a 5-day curfew in the capital due to a "respiratory illness" report.

ANS:B - China

China's population has fallen by about 850,000 for the first time in 61 years.