Daily Quiz-277

Know about CHACE-2

Chandigarh, Updated At : 03:37 PM Nov 12, 2025 IST

Q1. CHACE-2 helps in understanding “surface-exosphere interactions”. This phrase refers to:

A. Dust particle deposition

B. Exchange of volatiles like argon and water between regolith and exosphere

C. Micrometeorite impact energy

D. Solar flare reflection

Q2. Which statement correctly contrasts CHACE-2 and TMC-2 (Terrain Mapping Camera-2)?

A. CHACE-2 observes gases; TMC-2 maps surface topography.

B. Both perform spectral imaging.

C. TMC-2 measures plasma; CHACE-2 measures heat.

D. Both are optical instruments.

Q3. Which global collaboration assists in interpreting CHACE-2 data for space-weather correlation?

A. NASA-ISRO Space Applications Programme

B. ISRO-IITM Pune-IMD Joint Space Weather Study Group

C. European Space Agency’s MoonNet consortium

D. None – ISRO does independent analysis

Q4. Why is the CHACE-2 discovery of CME-induced changes important for lunar exploration?

A. It confirms presence of a magnetic field.

B. It demonstrates how solar events affect exosphere pressure, crucial for space-weather forecasting near the Moon.

C. It proves volcanic activity.

D. It detects oxygen generation on surface.

Q5. In scientific significance, CHACE-2 contributes primarily to:

A. Astrobiology research

B. Planetary atmospheres and space-weather coupling studies

C. Subsurface seismic activity mapping

D. Solar flare monitoring from Earth orbit

1. C

Explanation: IIT Kanpur developed NEMI database mapping sector-wise emission sources for policy use.

2. B

Explanation: Methane, black carbon, and tropospheric ozone are SLCPs with high warming potential but short lifetimes.

3. B

Explanation: NCAP allocates central funding to 132 non-attainment cities for city-specific clean-air actions.

4. C

Explanation: Studies by IIT Kanpur and TERI show 25–30% winter PM₂.₅ originating from stubble burning in Punjab–Haryana.

5. D

Explanation: Cleaner air directly supports SDG 3, 11 and 13, linking health, urban resilience and climate action.