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Test: Pollution And Calamities - 1 - Class 5 MCQ


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10 Questions MCQ Test Science Class 5 - Test: Pollution And Calamities - 1

Test: Pollution And Calamities - 1 for Class 5 2024 is part of Science Class 5 preparation. The Test: Pollution And Calamities - 1 questions and answers have been prepared according to the Class 5 exam syllabus.The Test: Pollution And Calamities - 1 MCQs are made for Class 5 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Pollution And Calamities - 1 below.
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Test: Pollution And Calamities - 1 - Question 1

Due to excessive cutting of trees and cleaning of forest to accommodate growing populations increased demand of food and accommodation, which of the following will result

(i) Soil erosion             
(ii) Animal extinction
(iii) Global warming                 
(iv) Loss of medicinal plants

Detailed Solution for Test: Pollution And Calamities - 1 - Question 1

Effects of Cutting Too Many Trees and Clearing Forests:

  • Soil erosion: Trees help hold soil together. Without them, soil gets washed away by rain and wind, making land less fertile for farming.
  • Animal extinction: Animals lose their homes when forests are destroyed. This can cause them to die or become extinct.
  • Global warming: Trees absorb harmful gases like carbon dioxide. Without trees, more of this gas stays in the air, causing the Earth to get hotter.
  • Loss of medicinal plants: Many medicines come from plants in forests. If forests are destroyed, we may lose important plants that help cure diseases.

 

Test: Pollution And Calamities - 1 - Question 2

A particular community is exposed excessive noise pollution, what will be result after some times to members of the community

Detailed Solution for Test: Pollution And Calamities - 1 - Question 2

Effects of Noise Pollution:

  • Headache: Loud noises can cause headaches, especially if the noise is continuous and bothersome.
  • Deafness: Being around very loud sounds for a long time can damage our ears and cause hearing loss.
  • Lack of sleep: Noise can make it hard to sleep, causing tiredness and health problems.
  • Stress and anxiety: Constant noise can make people feel stressed and anxious.
  • Impaired thinking: Too much noise can make it hard to focus, remember things, or solve problems.
  • Communication problems: It’s difficult to talk or hear others in a noisy environment, leading to misunderstandings.
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Test: Pollution And Calamities - 1 - Question 3

Harish is a nature lover. He always wants to act in an eco-friendly way whereas his brother is opposite to him. His brother always throws daily wastes and garbage in open vacant space. What advice Harish should give to his brother to minimize the pollution

Detailed Solution for Test: Pollution And Calamities - 1 - Question 3

Ways to Reduce Pollution (For Harish's Brother):

  • Separate waste: Put wet waste (like food scraps) in one bin and dry waste (like paper and plastic) in another bin.
  • Recycle: Recycle items like paper, plastic, and glass so they can be used again, reducing waste.
  • Composting:Turn food waste into compost, which can help plants grow.
  • Use biodegradable products: Use products that break down easily in nature, like biodegradable bags and plates.
  • Join community programs: Take part in local programs for recycling and waste management to keep the community clean.
  • Teach others: Share eco-friendly ideas with friends and family to help protect the environment.
Test: Pollution And Calamities - 1 - Question 4

Find the substance which is not placed in proper table given below.

Detailed Solution for Test: Pollution And Calamities - 1 - Question 4

Polyester is a synthetic material and does not break down easily, so it should be in the "Non-biodegradable" category.

Test: Pollution And Calamities - 1 - Question 5

Which scale used to measure the, intensity of earthquake?

Detailed Solution for Test: Pollution And Calamities - 1 - Question 5

The Richter scale measures how strong an earthquake is. Bigger numbers mean stronger earthquakes.

Test: Pollution And Calamities - 1 - Question 6

Karnataka state suffered draught for three consecutive years. What will be the condition of water table in the state?

Detailed Solution for Test: Pollution And Calamities - 1 - Question 6

Without rain, the water level underground goes down because water keeps evaporating, and there isn’t enough to refill it.

Test: Pollution And Calamities - 1 - Question 7

Which of the following are causes of draught.            

Detailed Solution for Test: Pollution And Calamities - 1 - Question 7
  • Scarcity of rainfall: Less rain means less water.
  • Severe hot days: Heat makes water evaporate faster.
  • Dry windy conditions: Wind can dry out the soil, making things worse.

 

Test: Pollution And Calamities - 1 - Question 8

Rain water harvesting is the solution of water problem. In this method

Detailed Solution for Test: Pollution And Calamities - 1 - Question 8

Rainwater harvesting means collecting rainwater and storing it to use later. This helps save water during times of shortage.

Test: Pollution And Calamities - 1 - Question 9

The persons who are involved in study of earthquake are called

Detailed Solution for Test: Pollution And Calamities - 1 - Question 9

Seismologists are scientists who study earthquakes and how they happen.

Test: Pollution And Calamities - 1 - Question 10

Status of bacterial count, oxygen level, no of area plant and animals given below of four river side cities. Which of them situated near an unpolluted river, on the basis of the given data

Detailed Solution for Test: Pollution And Calamities - 1 - Question 10

City B has low bacteria, high oxygen, and many plants and animals. This shows the river is clean and healthy.

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