Choose the correct answer from each of the four options given below:

Choose the correct answer from each of the four options given below:

(i) The prime source of chlorofluorocarbons is:

1. Vehicular emissions
2. Industrial effluents
3. Domestic sewage
4. Refrigeration equipments

(ii) Penicillin obtained from a fungus is:

1. Antibiotic
2. Antiseptic
3. Antibody
4. Antiserum

(iii) Marine fish when placed in tap water bursts because of:

1. Endosmosis
2. Exosmosis
3. Diffusion
4. Plasmolysis

(iv) Surgical method of sterilization in a woman involves cutting and tying of:

1. Ureter
2. Uterus
3. Urethra
4. Oviduct

(v) Synthesis phase in the cell cycle is called so, because of the synthesis of more: