Chapter 4


Our environment

1. Write the answer.

(a) What is meant by environment?

Answer:  Environment is the natural environment in which our animals are exposed to the elements. 
(b) What are the types of environment? Write an example.

Answer:  Environment is of two types – natural environment and man-made environment.

Natural Environment:- Mountains, Plains, Plateaus, Rivers, Wildlands, Soils, Animal Origins.

Man-made environment:- Houses-doors, vehicles, corridors, roads, telephones, mills-factories.

( c) What are the main components of environment?

Answer:  The main components of the environment are – soil, sand, bacteria, fungi, animals, water.

(d) Man-made environment is created by ?

Ans:  Humans meet their needs by meeting their environment in various ways. As a result of the work, some changes are made in the environment and the new environment becomes stronger. In other words, the human-made environment is the environment that humans have built for their own convenience.

2. Correct answer ☑ with chin.

(a) Which is not a component of man-made environment?

(1) Soil 

(2) Curriculum

(3) Transportation

Answer:  (1) Soil.
 
(b) Which is not a component of natural environment?

(1) Mountain

(2) Home 

(3) River

Answer:  (2) house.

(c) Which of the following causes environmental damage?

(1) Gach-Gachni

(2) Inspection of mills

(3) Growth of food crops

(4) Population growth

(5) When animals are exhausted.

Answer:  (2) Mills and factories.

            (4) Population growth,

            (5) When animals are exhausted.
 

3. The part of the saffron is similar to the saffron.

Bawphal                   Sophal

(a) Around us (a) Soil

(b) Hydrosphere. (b) Air

(c) Earth. (c) Environment

(d) Biosphere (d) Water

(e) Atmosphere.      (e) Life-world

Answer:

(a) Our surroundings - (c) Environment

(b) Hydrosphere - (d) Water

(c) Earth's atmosphere - (a) Soil

(d) biosphere - (e) biosphere

(e) Atmosphere - (b) Air


4. Biodegradable ingredients contain approximately 80 standard words written within the text.

Ans:  All living things depend on each other and survive. For example - Seuzia plants have the help of solar energy (sun's heat, water). In herbivores, the animal consumes food by chewing. That animal feeds on carnivorous animals. For example, cows, goats, and deer eat grass. Tigers, lions, cows, goats, and deer eat first. When plants, herbivores and carnivores die, bacteria mix with the soil to decompose. It is understood that the plant lives its life independently by interacting with all the elements that surround it. 

5. You will be surrounded by words. (Written in 100 standard words.)

Answer:

1) Every living thing in the environment is like a brick and protects each other.

2) To be kind to the environment, we should be kind to all living beings. Gradually, trees and forests are somewhat inappropriate. Illegal heart growth is the root cause of continuous environmental degradation through air, water and soil pollution. At speed, we will control pollution by controlling our activities. We all want to live in a pollution free world. 

3) I should focus on the carrying capacity of assets. We should use the money or resources in our hands so that they are preserved for future generations.