Question

fill in the blanks
1. Orenges taste sharp or sour because they conains a solution called ________
2. When carbon dioxide dissolves in water, it forms a __________
3. Alkalis trun red litmus _______
4. ________ is an indicator made from lichen which turns red in acid and blue on alkali
5. The alveoli are surrounded by a dense network of tiny blood vessels calles _______
6. The body gets its energy from chemical reaction which takes place in the cells is known as __________
7. Anaerobic respiration in yeast takes place by the proocess of _____
8. The angles which are measured between the rays and a line dawn at 90 to the mirror are called as ________
9. Light travels at a speed of _________
10. _______ lens is thin in the middle and thick round the edge

Answer 1

Answer:

idkidkdidkkdjdjdiiidixjdjdjididifid

Answer 2

Answer:

1. citric acid

2. carbonic acid

3. blue

4. litmus

5. blood capillaries

6. respiration

7. Fermentation

8.reflective ray / normal (don't know which one sorry)

9.670,616,629 miles per hour

10. concave

hope it helps you

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