Explanation

‘work out means to find the solution by thinking or talking about it.

warm-up means preparing for physical exertion or a performance by exercising or practicing gently beforehand.

wake up means an instance of a person waking up or being woken up turn down means a rejection or refusal.

take out means a bid (in a different suit) made in response to a bid or double by one's partner.

Explanation

Chlorophyll is a compound that is called a Chelate. 

Photosynthesis depends on the presence of chlorophyll for the absorption of light.

There are about five closely related chlorophylls:

1. chlorophyll a
2. chlorophyll b
3. chlorophyll c
4. chlorophyll d
5. chlorophyll e
6. chlorophyll f

Explanation

Write correct shorthand of the following words and phrases

Total Marks: 10

1. At the same time _____________________

2. Again and again ____________________

3. I am also ________________

4. We have formed ____________

5. My own _________________

6. Sent _______________

7. Empty __________________

8. Count _____________

9. Found ___________

10. Ashamed _______________