Question

1. Species found only in a particular is known as
2. Who is inventor of cell
3. Metals react with acids to produce
4. Like synthetic fibres, plastic is also a
5. For growing a crop sufficient sunlight, and
gas,
from the soil are essential.​

Answer 1

Answer:

2.Robert hooke discovered cell in 1665

Answer 2

Required Answers:

1. Species found only in a particular region.

$\longmapsto$ Endemic species

• Endemic species are found only in a particular region.
• They are restricted to a particular geographic region.
• Examples: Asiatic lion of Gir Forest , snow leopards of himalayas and many more.

2. Who is inventor of cell?

$\longmapsto$ Robert Hooke

• The cell was discovered by Robert Hooke in 1665. That was dead cell.
• Anton Van Leeuwenhoek firstly discovered the living cell.

3. Metals react with acids to produce

$\longmapsto$ salt and liberate hydrogen.

• When metals react with acids, salt is produced and hydrogen is released.
• Ex : 2Na + 2HCI → 2NaCI + H_2 ↑

4. Like synthetic fibres, plastic is also a

$\longmapsto$ Synthetic polymer

• Plastics are the polymers of high molecular weights.

5. For growing a crop sufficient sunlight,___and gas from the soil are essential.

$\longmapsto$ water

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