Passage 1: The Growing Challenge of Space Debris
In recent decades, the accumulation of space debris has become an increasingly pressing concern for the international space community. Similar to How marine conservation can protect ocean ecosystems, the preservation of Earth’s orbital space requires immediate attention and coordinated action. Space debris, consisting of defunct satellites, spent rocket stages, and fragments from collisions, poses significant risks to operational satellites and spacecraft.
Space debris visualization showing objects orbiting Earth
Currently, there are over 128 million pieces of debris smaller than 1 cm orbiting Earth, approximately 900,000 pieces between 1-10 cm, and around 34,000 pieces larger than 10 cm. These objects travel at speeds up to 17,500 miles per hour, making even tiny fragments potentially catastrophic to operational spacecraft.
Questions 1-5: Multiple Choice
Choose the correct letter, A, B, C, or D.
- According to the passage, space debris consists of:
A) Only broken satellites
B) Mainly rocket fuel
C) Various objects including defunct satellites and rocket parts
D) Exclusively man-made materials
[Continue with remaining questions and passages…]
Passage 2: International Efforts and Challenges
[Continue with full test content following IELTS format…]
Answer Key:
- C
- [Continue with complete answer key…]
Would you like me to continue with the full test content?
