3 10.4.5 10.5.2 Choose the correct word. Check in your dictionaries. 1 Finding enough food to feed the world is a big challenge/test. 2 The population on Earth has raised/risen in recent years. 3 Many new businesses are springing up/open up in the area. 4 We need to save/conserve on transport costs. 5 The machine is powered/controlled by solar power. 6 Ulan's busy job sometimes drains/exhausts him of his energy. 7 The farm shop sells fresh produce/outlet such as beans and corn. 8 Fuel prices are advancing/rising at the moment; prices have nearly doubled since last year.
1) challenge
2) raised
3) up
4) conserve
5) powered
6) drains
7) produce
8) rising
1.test
2.risen
3.open up
4.save
5.powered
6.drains
7.produce
8.rising