Question

hoose the correct option 10

1. The microorganisms which convert the dead plants and animals to humus

are known as.

A. Decomposers B. Sludge C. Humus. D. Heap

2. Branchy part of a tree above the stem is known as.

A. Canopy B. Crown. C. Tree. D. Stem

3. Which of the following is not responsible for water shortage?

A. Rapid growth of industries. B. Increasing population

C. Heavy rainfall D. Mismanagement of water resources

4. The rain water can be used to recharge the groundwater. This is referred to as.

A. Depletion B. Distribution of water

C.Water harvesting. D. Drip irrigation

5. A virtual image larger than the object can be produced by a

A. Concave lens B. Concave mirror.

C. Convex mirror. D. Plane mirror

6. Which type of mirror can form are a real image?

A. Concave. B. Convex.

C. Plane mirror. D. Duplex mirror

7. Reproductive part of a plant is.

A. Leaf B. Stem. C. Root D. Flower

8. Bryophyllum can reproduce by its.

A. Stem. B. Leaves. C. Roots. D. Flower

9. The vessels are made of special cells, forming the

A. Vascular tissue B. Xylem. C. Phloem D. Roots

10. The process of removal of waste is called as.

A. Digestion B. Excretion C. Dialysis D. Sweat

Q.2 Fill in the blanks 5

(a) Cleaning of water is process of removing__________

(b) Waste water released by houses is called__________.

(c) Dried__________ is used as manure.

(d)Drains get blocked by __________and__________.

Q.3 Match column A with column B. 5

A. B

1. Pulse rate A. Image that cannot be obtained on screen

2. A plane mirror B. The image is erect and of the same size as the object

3. Virtual image. C.70 to 80

4. Sunlight. D. Fusion

5. Zygote E. Colored

Q.4 Answer the following questions in one sentence. 10

1. What is fertilization?

2. Define pollination.

3. What is the function of veins?

4. What is a diaphragm?

5. Define aerobic respiration.​

Answer 1

Answer:

1.A

2.A

3.C

4.C

5.A AND B

6.A

7.D

8.B

9.A

10.B

Q. 2