(a) H2O
(b) CO2
(c) chlorophyll
(d) mesophyll cell
Q2. Process of digestion is helped by—
(a) Enzyme
(b) Hormone
(c) Mineral
(d) Vitamin
Q4. The depletion of Ozone layer is mainly due to—
(a) Volcanic eruptions
(b) Aviation fuels
(c) Radioactive rays
(d) Chlorofluorocarbons
Q5. Which of the following endocrine gland is situated in the neck?
(a) Pancreas
(b) Thyroid
(c) Pituitary
(d) Adrenals
Q6. Which one of the following is correctly matched?
(a) Primary consumer-Leopard
(b) Secondary consumer-Grass
(c) Decomposer-Bacteria
(d) Producer-Deer
Q7. An organism which can monitor air pollution is—
(a) Fungi
(b) Bacteria
(c) Lichen
(d) Algae
Q8. Chlorophyll contains—
(a) Zinc
(b) Iron
(c) Magnesium
(d) Cobalt
Q9. Which of the following is a tapeworm?
(a) Fasciola
(b) Schistosoma
(c) Taenia
(d) Enterobius
Q10. Antacids are found in drugs that give relief to—
(a) Eye sight
(b) Stomach ache
(c) Acne
(d) Headache
Q11. Clove is a—
(a) Dried flower bud
(b) Flower
(c) Fruit
(d) Seed
Q12. Typhoid fever is caused by—
(a) Virus
(b) Bacteria
(c) Allergy
(d) Fungus
Q13. Bird flu is a disease that effects human beings and spreads through—
(a) silkworm
(b) mealworm
(c) sheep
(d) poultry
Q14. In the human body, the appendix is attached to
(a) the large intestine
(b) the small intestine
(c) the gall bladder
(d) the stomach
Q15. Sweat contains water and _______.
(a) Citric acid
(b) Lactic acid
(c) Salt
(d) Vinegar
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