Give reasonable rejoinders using: because, that's why, it's quite clear because. 1. A backward branch of industry coal-mining turned into a highly developed branch.... 2. Miners' labour has become easier... 3. The next stage in the development of mechanization will be the introduction of automation of mining operations... 4. Practical training is an important part of the programme… 5. We have to satisfy the world's growing demand for minerals...

Ниже короткие rejoinders (связки внутри) к каждому утверждению. Я использовал указанные конструкции: because, that's why, it's quite clear because. 1) A backward branch of industry coal-mining turned into a highly developed branch.... - Because it adopted modern technologies and diversified its production, it became a highly developed branch. 2) Miners' labour has become easier... - That's why working conditions improved, productivity grew, and safety measures strengthened. 3) The next stage in the development of mechanization will be the introduction of automation of mining operations... - It's quite clear because automation reduces manual labor, increases precision, and boosts efficiency. 4) Practical training is an important part of the programme… - That's why practical training is essential: it provides hands-on experience and better prepares workers for real tasks. 5) We have to satisfy the world's growing demand for minerals... - It's quite clear because meeting rising demand requires expanding capacity, improving efficiency, and investing in technology.