Question

1. Which of the following substances is a mixture.

(a) Water (b) Air (c) gold (d) wood

2. Which process is used in Laboratories to separate blood cells from blood samples.

(a) Crystallisation (b) sublimation (c) filtration

3. What kind of change is lighting of candle.

(a) Chemical change (b) Physical change (c) Saturated change

4. What is a change which is useful to man called?

(a) Periodic change (b) Chemical change

(C) Trreversible change (d) Desirable change

5. The process of conversation of fibres into yarn is called

(a) ginning (b) souring (c) spinning (d) sorting

6. Which of the following is a text that is usually printed at the top of every page in a document.

(a) Footer (b) header (c) Graphic (d) formatting

7. Which of the following will you select to write a letter?

(a) Hyperlink (b) Mail merge (c) Attach (d) Alignment

8. What is the process of joining one or more cells known as?

(a) Merge cells (b) split cells (c) join cells (d) insert cells

9. Where is the hyperlink option found in MS-word?

(a) Tools (b) insert (c) format (d) file

10. Which menu do we select to add toolbars in MS word?

(a) Tab (b) shift+ tab (c) alt tab (d) shift only

11. Which of the following displays the text in a presentation?

(a) Preview (b) thumbnail (c) outline (d) display

12. What is intersection of rows and columns in MS Word known as?

(a) Rows (b) tables (c) grid (d) columns​

Answer 1

Answer:

1a) Air .................

Answer 2

Answer:

air , Water both are mixtures

Explanation:

air is a mixture of many gases like nitrogen and oxygen and water is also a mixture because it contains hydrogen and oxygen so it is also a mixture