Want to know all about Our Environment Class 10 MCQ:? Welcome, friends! In this article, we’ll cover everything you need for Our Environment Class 10 MCQ. This topic can be pretty mind-boggling, but we’ve shared Important MCQ from Previous Question Paper to help make studying easier.
If you go through and memorize these Our Environment Class 10 MCQ, you can consider about 60% of your syllabus covered! So, read till the end for Our Environment Class 10 MCQ..
Our Environment Class 10 MCQ
| Board | CBSE Board, UP Board, JAC Board, Bihar Board, HBSE Board, UBSE Board, PSEB Board, RBSE Board, JK Board |
| Textbook | NCERT |
| Class | Class 10 |
| Topic | Our Environment |
| Post Type | MCQ |
| Medium | Hindi/English |
Which of the following is a biodegradable substance?
(A) Plastic
(B) Glass
(C) Fruit peel
(D) Metal
Answer: (C) Fruit peel
What is the main cause of the greenhouse effect?
(A) Sulphur dioxide
(B) Methane
(C) Carbon dioxide
(D) Nitrogen gas
Answer: (C) Carbon dioxide
Which trophic level in a food chain has the highest amount of energy?
(A) Producers
(B) Primary consumers
(C) Secondary consumers
(D) Tertiary consumers
Answer: (A) Producers
Which one of the following practices is NOT eco-friendly?
(A) Using cloth bags
(B) Using paper bags
(C) Using plastic bags
(D) Recycling glass items
Answer: (C) Using plastic bags
In a food chain, the 10% law is used to calculate:
(A) Energy flow from one trophic level to another
(B) Total biomass at each trophic level
(C) Number of organisms at each trophic level
(D) Nutrient cycling
Answer: (A) Energy flow from one trophic level to another
Which of the following contributes the most to soil pollution?
(A) Biodegradable waste
(B) Non-biodegradable waste
(C) Agricultural waste
(D) Recycled materials
Answer: (B) Non-biodegradable waste
Which one of the following ecosystems is considered the most diverse?
(A) Desert
(B) Tundra
(C) Rainforest
(D) Grassland
Answer: (C) Rainforest
Which of the following statements is correct regarding decomposers?
(A) They are primary producers.
(B) They directly consume primary consumers.
(C) They recycle nutrients back into the ecosystem.
(D) They occupy the second trophic level.
Answer: (C) They recycle nutrients back into the ecosystem.
Which type of waste is typically found in the highest quantity in urban areas?
(A) Agricultural waste
(B) Electronic waste
(C) Plastic waste
(D) Biomedical waste
Answer: (C) Plastic waste
Which of the following organisms are most affected by biomagnification?
(A) Primary producers
(B) Herbivores
(C) Top predators
(D) Decomposers
Answer: (C) Top predators
Which of the following gases is responsible for ozone layer depletion?
(A) Carbon dioxide
(B) Methane
(C) Chlorofluorocarbons (CFCs)
(D) Nitrogen dioxide
Answer: (C) Chlorofluorocarbons (CFCs)
Which component of the ecosystem is responsible for capturing energy from sunlight?
(A) Herbivores
(B) Decomposers
(C) Producers
(D) Carnivores
Answer: (C) Producers
The term “biomagnification” refers to the:
(A) Increase in number of species
(B) Decrease in biodiversity
(C) Increase in concentration of pollutants in higher trophic levels
(D) Decrease in biomass at each trophic level
Answer: (C) Increase in concentration of pollutants in higher trophic levels
What is the role of decomposers in an ecosystem?
(A) They consume other organisms
(B) They convert dead matter into simpler substances
(C) They produce energy from sunlight
(D) They store energy for higher trophic levels
Answer: (B) They convert dead matter into simpler substances
Which of these is a natural way to maintain ecological balance?
(A) Releasing CFCs into the atmosphere
(B) Using pesticides extensively
(C) Promoting food chains and food webs
(D) Dumping waste into rivers
Answer: (C) Promoting food chains and food webs
In an energy pyramid, which of the following statements is correct?
(A) Energy increases as you go up the pyramid
(B) Energy decreases as you go up the pyramid
(C) Energy remains the same at all levels
(D) Energy is highest at the top trophic level
Answer: (B) Energy decreases as you go up the pyramid
The primary cause of acid rain is the presence of:
(A) Nitrogen gas
(B) Carbon monoxide
(C) Sulfur dioxide and nitrogen oxides
(D) Oxygen gas
Answer: (C) Sulfur dioxide and nitrogen oxides
Which one of the following is NOT a greenhouse gas?
(A) Carbon dioxide
(B) Methane
(C) Nitrous oxide
(D) Oxygen
Answer: (D) Oxygen
In a food web, if the population of snakes decreases, which of the following may increase?
(A) Grass
(B) Frogs
(C) Eagles
(D) Decomposers
Answer: (B) Frogs
What is the best way to manage solid waste in cities?
(A) Burning waste in open spaces
(B) Dumping waste in rivers
(C) Recycling and composting
(D) Burying waste in public parks
Answer: (C) Recycling and composting
Friends, how did you like this Our Environment Class 10 MCQ post, please let us know in the comment section and if you have any questions, feel free to ask us in the comment box. If you find this post useful, please share it with others and bookmark hindihelphub.