Question

6th Standard question


please solve
Q. Answer the following questions :

1. Why are air , water and land considered to be valuable natural resources ?

2. Write the uses of these animals and plants - earthworms ,bivalves ,holy basil ,mulberry ?

3. Write the difference between Vertebrate - Invertebrate ?

4. What are the criteria used to classify living thing'
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Answer 1

Answer:

Ans.) Air, water and land are natural resources i.e they are provided to us by nature. Land resources are considered to be a natural resource of utmost importance because they support natural vegetation, wildlife, human life, economic activities etc. Air is important for all the living organisms.

Ans.) Earthworm

• By their activity in the soil, earthworms offer many benefits: increased nutrient availability, better drainage, and a more stable soil structure, all of which help improve farm productivity. Worms feed on plant debris (dead roots, leaves, grasses, manure) and soil.

Bivalves

• The shells of bivalves are used in craftwork, and the manufacture of jewellery and buttons.

Holy basils

• It is commonly used in the traditional Indian medicine system, Ayurveda. Holy basil is sometimes called "hot basil" because of its peppery taste. Chemicals in holy basil are thought to decrease pain and swelling. They also might lower blood sugar in people with diabetes.

Mulberry

• White mulberry is often tried in order to help treat diabetes. It is also tried for treating high cholesterol levels, high blood pressure, the common cold and its symptoms, muscle and joint pain such as from arthritis, constipation, dizziness, ringing in the ears, hair loss, and premature graying.

Ans.) Vertebrae have backbone.

Invertebrates don't have backbone.

Ans.) The main criteria for classifying organisms are their structures and physical differences and similarities. They are classified based on the complexity of cell structure, body composition, nutritional patterns, and lifestyle, and phylogenetic relationships.

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Answer 2

Answer:

Answer the following questions:

Explanation:

A1 Air, water and land are natural resources they are provided to us by nature. Land resources are considered to be a natural resource of utmost importance because they support natural vegetation, wildlife, human life, economic activities etc Air is important for all the living organisms.

A2 Honeybees, shark, yaks, sheep, earthworms, dogs,

, horses, mice.

Plants: Ginger,

A3 Vertebrates have a skeletal structure with a spinal column or backbone. Invertebrates have no backbone, while vertebrates have a well developed internal skeleton of cartilage and bone and a highly developed brain that is enclosed by a skull.

A4

1 Living things have a cellular structure.

2 Living things adapt to the surroundings and respond to stimuli.

3 Living things can reproduce.

4 Living things require energy to stay alive.

5 Living things respire.