Revision

4. In the __________ gene gun, the external barrel is much narrower than the standard gun
5. _______ open up and allow the capsule to float down into the ocean.
8. If the rocket ascends more than 100,000 metres,the _______ is automatically disabled.
9. It is hand held and ________ the size of a hairdryer.
10. As soon as the LAS has reached the correct orientation, the explosive bolts _______.
11. All racing cars are _________ with ejection seats, and use radar and sensors.

1. if your brake pedal feels soft or ________, it is possible that air has entered the brake lines
2. After detecting the ________, the rocket's computer system activates the abort engine.
3. Over the last few years, he has _________ an international expert in gene gun technology.
6. attitude-control engine _________
7. Like any other sport in the year 2025, professional racing has ________.