Question

True or false.( 1 mark each)

1. The place where an organism live is called a habitat.

2. Darwin gave the theory of natural selection.

3. Legs of humans and horse are analogus organs.

4. Wings of bats and insects are homologus organs.

5. Onion is an example of olfactory indicator.

6. Acid react with base only in aqueous solution.

7. pH 14 in dicates extreme acidic nature.

8. Acid rain is a natural phenomenon with no relation to humans.

9. Group 18 of the periodic table has the highet electron affinity.

10. Group 1 of the periodic table has the lowest electron affinity.​

Answer 1

Answer:

read the whole book plz

Answer 2

Answer:

1. true

2. true

3. false

4.false

5.true

6.true

7. false

8.false

9.false

10. true