1. When did China’s Chang’e-6 spacecraft successfully retrieve samples from the moon’s far side?
1. May 2024
2. April 2024
3. June 2024
4. July 2024
2. What type of rock fragments were found in the Chang’e-6 samples?
1. Granite
2. Basalt
3. Limestone
4. Sandstone
3. How old are the volcanic rock fragments discovered by Chang’e-6?
1. 3.2 billion and 1.8 billion years ago
2. 5.2 billion and 3.8 billion years ago
3. 4.2 billion and 2.8 billion years ago
4. 2.2 billion and 1.8 billion years ago
4. Where did Chang’e-6 land on the moon?
1. Mare Tranquillitatis
2. Tycho Crater
3. Copernicus Crater
4. South Pole-Aitken Basin
5. What method was used to determine the age of the basalt samples?
1. Carbon dating
2. Radioisotope dating
3. Thermoluminescence
4. Potassium-argon dating
6. Until approximately when did volcanic activity continue on the moon’s near side?
1. 500 million years ago
2. 250 million years ago
3. 120 million years ago
4. 50 million years ago
7. What characteristic makes the South Pole-Aitken Basin significant for research?
1. It has the thickest crust
2. It has water ice deposits
3. It has the thinnest crust
4. It has the most craters
8. Why did volcanic activity on the moon cease?
1. Impact from asteroids
2. Atmospheric changes
3. External gravitational forces
4. Depletion of internal heat sources
9. What makes the Chang’e-6 mission historically significant?
1. First mission to the moon
2. First sample retrieval from moon’s far side
3. First lunar landing
4. First detection of water on moon
10. How long did volcanic activity last during the moon’s early history?
1. 800 million years
2. 1 billion years
3. 1.4 billion years
4. 2 billion years