Here are the completed sentences for Exercise 1 and Exercise 2:

**Exercise 1:**

1. A **landslide** is a movement of rocks and soil down a mountain or hill.
2. The clock is powered by two small **batteries**.
3. Many people live unhappily because of floods and other natural **disasters**.
4. An **earthquake** is a sudden movement of the Earth’s surface, often causing severe damage.
5. A **typhoon** is a violent storm with very strong winds.
6. A **flashlight** is an electric light that you can hold in your hand.
7. Fire and rescue services are organizations that ensure public safety, security, and health.
8. He had gone away and there was no **expectation** of his return.
9. The town was **flooded** when the river burst its banks.
10. A severe **drought** ruined the crops.
11. If the alarm sounds, you must leave the **building** immediately.
12. A **fire extinguisher** is a piece of equipment kept inside buildings which is used to stop small fires.
13. In 2004, an earthquake triggered a **tsunami** that destroyed entire communities in Indonesia and other countries around the Indian Ocean.
14. A **blizzard** is a severe snow storm with strong winds.

**Exercise 2:**

1. My new colleagues explained to me clearly and **informed** how the process works.
2. The hotel is **elegantly** elegant and regularly rated the number one ski hotel in America.
3. How do you manage to work in this **hot** environment without air conditioning?
4. This decision will have a **disastrous** impact on foreign policy.
5. The **noisy** dogs often wake the whole neighborhood up at night.
6. After a long day of work, I just want to stretch out on the couch and listen to some **fresh** music.
7. There isn't much **fresh** air in busy cities.
8. There isn’t much **entertainment** in my village - just a cinema and a sports center.
9. I’ll leave at 5:30 because I have a **swimming** lesson at 6 p.m.