Class 3 Exam  >  Class 3 Tests  >  Social Science for Class 3  >  Test: Our environment - 1 - Class 3 MCQ

Test: Our environment - 1 - Class 3 MCQ


Test Description

10 Questions MCQ Test Social Science for Class 3 - Test: Our environment - 1

Test: Our environment - 1 for Class 3 2024 is part of Social Science for Class 3 preparation. The Test: Our environment - 1 questions and answers have been prepared according to the Class 3 exam syllabus.The Test: Our environment - 1 MCQs are made for Class 3 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Our environment - 1 below.
Solutions of Test: Our environment - 1 questions in English are available as part of our Social Science for Class 3 for Class 3 & Test: Our environment - 1 solutions in Hindi for Social Science for Class 3 course. Download more important topics, notes, lectures and mock test series for Class 3 Exam by signing up for free. Attempt Test: Our environment - 1 | 10 questions in 15 minutes | Mock test for Class 3 preparation | Free important questions MCQ to study Social Science for Class 3 for Class 3 Exam | Download free PDF with solutions
Test: Our environment - 1 - Question 1

Pollution is the process of making the environment

Detailed Solution for Test: Our environment - 1 - Question 1

Pollution is the process of making land, water, air or other parts of the environment dirty and not safe or suitable to use. This can be done through the introduction of a contaminant into a natural environment, but the contaminant doesn't need to be tangible.

Test: Our environment - 1 - Question 2

The substance which pollutes the environment is called the

Detailed Solution for Test: Our environment - 1 - Question 2

The substance which produces pollution is called as pollutants. Pollutant may be the man made like smoke and natural like forest fire.

1 Crore+ students have signed up on EduRev. Have you? Download the App
Test: Our environment - 1 - Question 3

The types of pollutions are

Detailed Solution for Test: Our environment - 1 - Question 3

There are different types of pollution: water pollution, air pollution, solid waste pollution and noise pollution. All of these can be found in urban areas. The main sources of pollution are household activities, factories, agriculture and transport.

Test: Our environment - 1 - Question 4

The Earth’s atmosphere is made up of these gases

Detailed Solution for Test: Our environment - 1 - Question 4

Earth's atmosphere is composed of about 78 percent nitrogen, 21 percent oxygen, 0.9 percent argon, and 0.1 percent other gases. Trace amounts of carbon dioxide, methane, water vapor, and neon are some of the other gases that make up the remaining 0.1 percent.

Test: Our environment - 1 - Question 5

Air pollution causes due to

Detailed Solution for Test: Our environment - 1 - Question 5

Air Pollution –The crackers contains many toxic gases and chemical compounds which activates after getting in touch with exposed air and start harming us. Example Nitrous oxide, which remains in air for long time if the area doesn’t get heavy rain or strong winds. 
Cigarette smoking causes environmental pollution by releasing toxic air pollutants into the atmosphere. The cigarette butts also litter the environment, and the toxic chemicals in the residues seep into soils and waterways, thereby causing soil and water pollution, respectively. 

Test: Our environment - 1 - Question 6

Trees release the gas

Detailed Solution for Test: Our environment - 1 - Question 6

Through a process called photosynthesis, leaves pull in carbon dioxide and water and use the energy of the sun to convert this into chemical compounds such as sugars that feed the tree. But as a by-product of that chemical reaction oxygen is produced and released by the tree.

Test: Our environment - 1 - Question 7

Air pollution causes

Detailed Solution for Test: Our environment - 1 - Question 7

Other activities, including cutting down trees, also emit greenhouse gases. The high concentration of these greenhouse gases in the atmosphere is responsible for increasing more heat on Earth, which leads to an increase in global temperature. Climate scientists believe that human activities are the main reason behind global warming.

Test: Our environment - 1 - Question 8

When harmful substances are releases into the water bodies it is called

Detailed Solution for Test: Our environment - 1 - Question 8

Water pollution is the release of substances into bodies of water that makes water unsafe for human use and disrupts aquatic ecosystems. Water pollution can be caused by a plethora of different contaminants, including toxic waste, petroleum, and disease-causing microorganisms.

Test: Our environment - 1 - Question 9

We need water for doing

Detailed Solution for Test: Our environment - 1 - Question 9

You need water to digest your food and get rid of waste. Water is needed for digestive juices, urine (pee), and poop. And you can bet that water is the main ingredient in perspiration, also called sweat. Besides being an important part of the fluids in your body, water is needed by each cell to work.

Test: Our environment - 1 - Question 10

Whenever we hear very loud noise it cause-

Detailed Solution for Test: Our environment - 1 - Question 10

Whenever we hear very loud noise it cause irritation. Noise annoyance can result from interference with daily activities, feelings, thoughts, sleep, or rest, and may be accompanied by negative emotional responses, such as irritability, distress, exhaustion, a wish to escape the noise and other stress-related symptoms.

15 videos|85 docs|22 tests
Information about Test: Our environment - 1 Page
In this test you can find the Exam questions for Test: Our environment - 1 solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Our environment - 1, EduRev gives you an ample number of Online tests for practice

Up next

15 videos|85 docs|22 tests
Download as PDF

Up next