PDF chapter test TRY NOW
1. Desert does not have water. Why? Give the reason.
a. A desert is defined as a region that ________________.
b. In the desert, __________________.
c. Cactus-like plants and camel-like animals in such areas _____.
2. Kavitha said “ Palm tree is a tall tree, so it gives hard wood”! Do you agree with her statement or not ? Explain Why?
a. The palm tree is a tall tree, so it gives softwood.
b. The palm tree is neither a hardwood nor a softwood.
c. The palm tree belongs to a different family known as Musaceae, and it has a very different cellular structure than soft or hardwoods.
3. Look at the diagram given below and answer the following questions.
Soil fertility is increased by bacteria. How?
Soil fertility is increased by bacteria. How?
a. A dark-coloured, organic material formed by microorganisms acting on these dead and decaying plant parts is called _________.
b. Humus _________ as it contains mineral salts that mix with the soil.
c. Plants such as _________ and bacteria like _________ are also widely used in agriculture to fix nitrogen in the soil.
3. Look at the diagram given below and answer the following questions.
Honey bees are essential for the reproduction of the plants Why?
Honey bees are essential for the reproduction of the plants Why?
a. Which of the following are the best pollinator?
b. Honey bees are attracted to the __________.
c. As the insects move from one flower to the next, they shed ________.
d. Animals, pests and birds are essential for the ________ of plants.
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