Available Answers

1. 1.

   Fill in the blanks:

   1. Wheat grows well in __________ soil.
   2. __________ live on both land and in water.
   3. Our skull is made up of __________ sets of bones.
   4. The __________ coats of eye is known as retina.
   5. Milk, cheese and nuts are rich in __________.
2. 2.

   Write 'T' for true or 'F' for false:

   1. A seed coat contains embryo of baby plant.
   2. Fish breathe through gills.
   3. The rib cage protects out spinal cord.
   4. The tongue is an organ of taste.
   5. Vitamin C is found in egg, milk, butter, etc.
3. 3.

   Match the following:

   1. Skeleton system	a. Stratosphere
   2. Hinge joint	b. Soluble in water
   3. Ball and socket joint	c. 33 small bones
   4. Salt	d. Knee
   5. Backbone	e. Gives shape and support to the body.
   6. Ozone	f. Hip and shoulder

    

4. 4.

   How can we protect crops?
5. 5.

   What are the uses of Petroleum?
6. 6.

   How water can be purified?