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The coronal mass ejection (CME) observed by Aditya-L1 had which of the following characteristics?

1. Temperature of about 1.8 million Kelvin
2. Mass nearly 270 million tons
3. Speed of about light speed
4. Energy close to 9.4×10^21 joules

How many of the above statements are correct?
 

The advantage of placing the Aditya-L1 mission at the Lagrangian point L1 is that 

With reference to soil organic carbon in India, consider the following statements.

1. Organic carbon in soil influences its physical, chemical, and biological properties.
2. Higher soil temperature generally leads to higher organic carbon concentration.
3. Imbalanced and excessive fertilizer application contributes to the decline of soil organic carbon.
4. Soil organic carbon content tends to increase with elevation and rainfall.

How many of the above statements are correct?

Arrange the following cities from North to South.

1. Amman
2. Damascus
3. Riyadh
4. Ankara

Which one of the following African countries is popularly known for gold production?