below. How many can you find without looking back at the article?
1) population (n.) [U] - all the people who live in one area, city or
country.
2)
(n.) [U] - a process of making water, air, soil, etc.
dirty.
3)
(n.) [U; C] - when sb or sth becomes impossible
to see or find.
4)
(n) [C] - a person who carefully studies the topic
to find new facts or information.
5)
(n.) [U] - the process of something being made
worse.
6)
(n.) [U] - the state of being safe and protected
from danger
7)
(n.) [C; U] - a rise in the number.
8)
(n.) [U] - physical harm to something that makes
it less attractive or useful.

​

Объяснение:

1. What can lead to an unhealthy weight?

ответ: This leads to the development of hypertension, and early, it is often observed in overweight people by the age of thirty. And hypertension is the main risk factor for heart accidents.

2. How does physical activity benefit our muscles and bones?

ответ: Regular physical activity reduces the risk of heart disease (including heart attack, hypertension, and stroke) and helps fight overweight. This fact is widely known. However, significantly fewer people understand that physical activity is also very important in building and maintaining healthy, strong bones.

3. What does our heart do?

ответ: The heart is a muscular organ in humans and animals that pumps blood through blood vessels.

4. What is the difference between low-and medium-intensity classes?

ответ: For low — intensity exercises — 20 minutes or longer with a load of about 50% of the maximum capacity of the heart-fat reserves provide up to 90% of energy. And during aerobic exercise with a heart load of about 75% less fat is burned (about 60%), but the body loses more total calories, including "fat".

5. How does a person feel during high-intensity activity?

ответ: During an aerobic workout, your heart rate should be 70-75% of your maximum and maintained for at least 20 minutes.

Сделала кратко, подробно в источниках.

1. There is (что-то) on his desk.

2. (Кто-то) helps Jack with mathematics.

3. I am going to tell (всем) about this ship.

4. Have you got (что-нибудь) to read in English?

5.(Bce) likes this TV program.

6. Is (kto-nn6yab) going to help Margaret?

7. I am not reading (ничего) in English now

8 They are going (никуда)this weekend.

9. Is there (кто-нибудь) on the bridge now?

10. I'd like to tell you (что-нибудь) about my native town.

Объяснение:

1. Somebody know French in our group.

2. Some of us knows French.

3. Everybody like jazz.

4. Nobody are going to the museum today.

5. None of them is going to the museum today.

6. Someone are waiting for you downstairs (внизу).

7. Some of your cadets is for you downstairs.

8. Everything in this text is difficult for me.

9. Is any of you going to the cinema today?

10. Is anybody going to the cinema today?