Class 5 Exam  >  Class 5 Notes  >  Science Class 5  >  Worksheet: Our Environment - 2

Class 5 Science - Our Environment - CBSE Worksheets - 2

Q1: Multiple Choice Questions.

(i) Which of the following is a natural greenhouse gas?
(a) 
Oxygen
(b) 
Carbon dioxide
(c) 
Nitrogen
(d) 
Hydrogen
Class 5 Science - Our Environment - CBSE Worksheets - 2

(ii) What is the primary source of energy for the water cycle?
(a) 
Wind
(b) 
Sun
(c) 
Earth's core
(d) 
Moon

(iii) Which activity contributes to air pollution?
(a) 
Planting trees
(b) 
Using public transportation
(c) 
Burning fossil fuels
(d)
Recycling paper

(iv) What is the main purpose of the ozone layer in the atmosphere?
(a) 
To produce oxygen for breathing
(b) 
To prevent the greenhouse effect
(c) 
To absorb harmful UV rays
(d) 
To regulate the Earth's rotation

(v) Which environmental problem is caused by the excessive use of synthetic fertilizers and pesticides?
(a) 
Global warming
(b) 
Soil erosion
(c) 
Acid rain
(d) 
Deforestation
Class 5 Science - Our Environment - CBSE Worksheets - 2

Q2: Fill in the Blanks.

(i) The process by which green plants make their food is called __________.

(ii) __________ is the thin layer of gases that surround the Earth.

(iii) The process of water turning into vapor is called __________.
Class 5 Science - Our Environment - CBSE Worksheets - 2

(iv) The three main types of pollution are air pollution, water pollution, and __________.

(v) __________ is the excessive cutting down of trees.

Q3: Match the Column.

Match the items in Column A with their corresponding descriptions in Column B.
Class 5 Science - Our Environment - CBSE Worksheets - 2

Q4: True or False. 

(i) The ozone layer helps in protecting the Earth from harmful ultraviolet (UV) rays of the sun.

(ii) Overpopulation has no impact on the environment.

(iii) All types of plastic are biodegradable.

(iv) Recycling helps reduce the amount of waste in landfills.

(v) Cutting down trees has no effect on the water cycle.

Q5: Short Answer Questions.

(i) What is biodiversity, and why is it important for the environment?
Class 5 Science - Our Environment - CBSE Worksheets - 2

(ii) Describe the greenhouse effect and its impact on global temperatures.

(iii) What are the three Rs in waste management, and how do they help reduce environmental impact?

(iv) Explain the concept of the food chain with an example.
Class 5 Science - Our Environment - CBSE Worksheets - 2

(v) How can individuals contribute to conserving the environment in their daily lives?

The solutions of the worksheet "Our Environment - 2"

The document Class 5 Science - Our Environment - CBSE Worksheets - 2 is a part of the Class 5 Course Science Class 5.
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FAQs on Class 5 Science - Our Environment - CBSE Worksheets - 2

1. What is the importance of protecting our environment?
Ans. Protecting our environment is crucial because it ensures the survival of all living beings. A healthy environment provides clean air, water, and food, which are essential for our well-being. Additionally, preserving nature helps maintain biodiversity, supports ecosystems, and combats climate change.
2. How can individuals contribute to environmental conservation?
Ans. Individuals can contribute to environmental conservation by adopting simple practices such as reducing waste, recycling materials, conserving water and energy, planting trees, and using public transport or carpooling. Small actions can collectively make a significant impact on the environment.
3. What are the main causes of environmental pollution?
Ans. The main causes of environmental pollution include industrial waste, vehicle emissions, deforestation, plastic waste, and agricultural runoff. These activities release harmful substances into the air, water, and soil, leading to health problems and damage to ecosystems.
4. What role do governments play in environmental protection?
Ans. Governments play a crucial role in environmental protection by creating and enforcing laws and regulations that limit pollution, promote sustainable practices, and protect natural resources. They also invest in renewable energy projects and raise public awareness about environmental issues.
5. What are some ways schools can promote environmental awareness among students?
Ans. Schools can promote environmental awareness by incorporating environmental education into the curriculum, organizing eco-friendly events, initiating recycling programs, and encouraging students to participate in community service projects focused on conservation. Engaging students in hands-on activities can foster a sense of responsibility towards the environment.
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