Class 10 Biology: Our Environment — Chapter Test 1

Class 10 • Biology • Our Environment • Chapter Test

EasyFREE

Questions

20 min

Duration

Marks (1 each)

Negative marking

Original practice questions with full solutions by ExamPortal.

Instructions

• Read each question carefully and pick the correct answer.
• You can mark questions for review and come back to them.
• Answers are saved automatically.
• The test is submitted automatically when time runs out.

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SYLLABUS & QUESTION BLUEPRINT

Sample Practice Questions

Preview 5 sample questions from this 15-question test. Test your knowledge below or take the full exam in timed CBT mode.

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Question 1 of 15

In an ecosystem, the producers are:

animals

green plants

fungi

bacteria that decompose

View Correct Answer & Step-by-Step Solution

Correct Option:(B)green plants

Detailed explanation is available inside the official test attempt review.

Question 2 of 15

Roughly what percentage of energy is passed from one trophic level to the next?

10%

50%

90%

View Correct Answer & Step-by-Step Solution

Correct Option:(B)10%

Detailed explanation is available inside the official test attempt review.

Question 3 of 15

Every food chain begins with:

herbivores

producers

decomposers

carnivores

View Correct Answer & Step-by-Step Solution

Correct Option:(B)producers

Detailed explanation is available inside the official test attempt review.

Question 4 of 15

Which of these is biodegradable?

plastic bag

vegetable peel

glass bottle

aluminium can

View Correct Answer & Step-by-Step Solution

Correct Option:(B)vegetable peel

Detailed explanation is available inside the official test attempt review.

Question 5 of 15

The ozone layer protects us from:

infrared rays

ultraviolet (UV) radiation

visible light

radio waves

View Correct Answer & Step-by-Step Solution

Correct Option:(B)ultraviolet (UV) radiation

Detailed explanation is available inside the official test attempt review.

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Frequently asked questions

How many questions are there in Class 10 Biology: Our Environment — Chapter Test 1?

There are 15 questions to answer in 20 min. Each correct answer gives 1 mark, for a total of 15 marks.

Is there negative marking?

No. Wrong answers do not lose marks, so attempt every question.

Is this mock test free?

Yes, it is completely free. Just log in with your email to start.

What does this test cover?

It covers the chapter "Our Environment" of Class 10 Biology. All questions are original, with a full solution for each.

Will I see my result and the solutions?

Yes. Right after you submit you get your score, accuracy, rank and percentile, and you can review every question with the correct answer and a step-by-step explanation.

Can I take this test again?

Yes, you can retake it as many times as you like and compare your scores.