Across 1. Non-metal which catches fire if exposed to air. (10) 3. The lowest temperature at which a substance catches fire is called its ___ temperature. (8) 5. The most common fire extinguisher. (5) Down 4. Petrol is used as a ___ in automobiles. (4) 6. It is as hard as stone and black in colour. (4)
Across 1. This is necessary for photosynthesis. 3. Term for component present in the cytoplasm. 6. The living substance in the cell. 8. Units of inheritance present on the chromosomes.
Complete the crossword with the help of clues given below.
Across
1. This is necessary for photosynthesis.
3. Term for component present in the cytoplasm.
6. The living substance in the cell.
8. Units of inheritance present on the chromosomes.
Down
1. Green plastids.
2. Formed by collection of tissues.
4. It separates the contents of the cell from the surrounding medium.
5. Empty structure in the cytoplasm.
7. A group of cells.