1.
"স্বৰাজ মোৰ জন্ম স্বত্ব" - এই বিখ্যাত উক্তি শাৰি কাৰ আছিল?
Correct Answer
B. বাল গংগাধৰ তিলক
Explanation
The correct answer is "বাল গংগাধৰ তিলক" (Bal Gangadhar Tilak). The quote "স্বৰাজ মোৰ জন্ম স্বত্ব" translates to "Swaraj is my birthright" and is famously associated with Bal Gangadhar Tilak, who was a prominent Indian nationalist leader. Tilak played a significant role in the Indian independence movement and advocated for self-rule or Swaraj for India. This quote reflects his belief in the inherent right of Indians to govern themselves.
2.
সংস্কৃতি আৰু পৰম্পৰাই তলৰ কোনটো বিষয়ত অৰিহনা যোগায় ?
Correct Answer
B. সমাজিক ঐতিহ্য আৰু পৰিচয়
Explanation
The given options are related to culture and tradition. "সমাজিক ঐতিহ্য আৰু পৰিচয়" (Social customs and identity) is the only option that does not fit in this category.
3.
বৰ্তমান এশিঙীয়া গঁড়ৰ সংৰক্ষণ স্থিতি কি?
Correct Answer
D. স্পৰ্শকাতৰ (valunerable)
Explanation
The correct answer is "স্পৰ্শকাতৰ (valunerable)". This means that the current conservation status of the Asian elephant is vulnerable. This indicates that the population of Asian elephants is facing a high risk of extinction in the wild. The vulnerable status highlights the need for conservation efforts to protect and preserve this species.
4.
জিবাশ্ম ইন্ধনৰ উদাহৰণ :
Correct Answer
C. কয়লা প্ৰাকৃতিক গেছ আৰু খাৰুৱা তেল
Explanation
The given answer correctly identifies "কয়লা প্ৰাকৃতিক গেছ আৰু খাৰুৱা তেল" as an example of জিবাশ্ম ইন্ধন (biomass fuel). It correctly identifies coal and fossil fuel as examples of biomass fuel, which are natural resources derived from plants and animals.
5.
ফ্ল'ৰাইদ প্ৰদুষণৰ দ্বাৰা মানুহৰ কি অংগা প্ৰথমে প্ৰভাৱিত হয়?
Correct Answer
D. দাঁত
Explanation
Fluoride pollution primarily affects the teeth. Excessive exposure to fluoride can lead to dental fluorosis, which is characterized by discoloration and pitting of the teeth. This condition occurs when high levels of fluoride are ingested during the development of the teeth, usually in childhood. Therefore, the correct answer is "দাঁত" (teeth).
6.
পৰিৱেশ (শংৰক্ষণ) আইন
Correct Answer
A. 1980
Explanation
The correct answer is 1980. This suggests that the environmental (conservation) law mentioned in the question was enacted in the year 1980.
7.
কি যন্ত্ৰৰ দ্বাৰা বায়ুত প্ৰলম্বিত ধুলিকণাৰ পৰিমাণ জুখিব পাৰি?
Correct Answer
C. কনিমিতাৰ
Explanation
The correct answer is "কনিমিতাৰ" which means "particle counter" in English. A particle counter is a device used to measure the amount of particulate matter in the air. It is commonly used in industries, laboratories, and environmental monitoring to assess air quality and potential health hazards.
8.
বৰ্তমান অসমৰ ৰাস্ত্ৰিয় উদ্যানৰ সংখ্যা :
Correct Answer
C. ৫
Explanation
The correct answer is ৫ because it is the only number that is missing from the given list of numbers.
9.
তলৰ কোনটো ৰাষ্ট্ৰীয় উদ্যানত সংৰক্ষণ কৰা হয়?
Correct Answer
C. উদ্ভিদ আৰু প্ৰাণী দুয়োটা
10.
তলৰ কোনটো পৰিৱেশ অধ্যয়নৰ বিষয় প্ৰসঙ্গ নহয়
Correct Answer
A. গাখীৰ
Explanation
The correct answer is "গাখীৰ" because it does not relate to the subject of environmental studies. "গাখীৰ" refers to a traditional Assamese sweet dish made from rice and milk, which is not directly related to the study of the environment. On the other hand, "পানী" (water), "খাদ্য" (food), and "বাসস্থান" (habitat) are all topics that are relevant to the study of the environment.
11.
শিশুসকলৰ ধাৰণা বিকাশ কিদৰে হয়?
Correct Answer
D. সকলোবোৰ
12.
পৰিৱেশৰ কোনটো অংশৰ অধ্যয়নৰ বাবে বাস্তৱিক যাদুঘৰ (Virtual Maseum) এটা ICT সৰঞ্জাম হিচাপে ব্যৱহৃত হয়?
Correct Answer
B. সামুদ্ৰিক পৰিৱেশতন্ত্ৰ।
Explanation
Virtual museums are ICT tools used for studying different aspects of the environment. The question asks which part of the environment is studied using a virtual museum. The correct answer is "সামুদ্ৰিক পৰিৱেশতন্ত্ৰ" which translates to "marine environment". This suggests that a virtual museum can be used to study the marine environment, including its various components such as marine life, ecosystems, and conservation efforts.
13.
পৰিৱেশ অধ্যয়ন শিকণৰ বাবে নিম্নোল্লিখিত কোনটো ICT সৰঞ্জাম ব্যৱসাৰ নহয়?
Correct Answer
B. গুগল প্লে ষ্টোৰ
Explanation
The other options mentioned in the question are related to environmental studies and can be considered as ICT tools for learning about the environment. However, "Google Play Store" is not directly related to environmental studies and is not an ICT tool for learning about the environment.
14.
উদ্ভিদ আৰু প্ৰাণীৰ মাজত থকা সম্পৰ্কৰ এটা মুখ্য কাৰণ হ'ল -
Correct Answer
C. খাদ্য
Explanation
The main reason for the relationship between plants and animals is food. Plants provide food for animals through the process of photosynthesis, where they convert sunlight into energy-rich molecules. Animals, in turn, consume plants as a source of nutrition. This interdependence between plants and animals forms the basis of the food chain and is essential for the survival and balance of ecosystems.
15.
বিশ্ব বন দিৱস (Worls Forest Day )
Correct Answer
D. 21 মাৰ্চ
Explanation
World Forest Day is celebrated on March 21st. This day is dedicated to raising awareness about the importance of forests and trees in our environment. It aims to promote the conservation and sustainable management of forests, as well as highlight the benefits they provide to ecosystems and human well-being. By celebrating World Forest Day on March 21st, people are encouraged to take action and contribute to the preservation of forests for future generations.
16.
সালোক-সংশ্লেষণ প্ৰক্ৰিয়াত কোনটো গেছ উৎপন্ন হয়?
Correct Answer
A. অক্সিজেন
Explanation
সালোক-সংশ্লেষণ প্রক্রিয়াত অক্সিজেন গ্যাস উত্পন্ন হয়। সালোক-সংশ্লেষণ প্রক্রিয়ায় অক্সিজেন মোলেকুলগুলি অন্য মোলেকুল সাথে সংশ্লিষ্ট হয় এবং একটি নতুন পণ্য উত্পন্ন হয়। এই প্রক্রিয়ায় অক্সিজেন অক্সিজেন ডাই অক্সাইড হিসাবে পরিণত হয়।
17.
কেতিয়া পৰিৱেশ শিক্ষাক SCERT য়ে স্কুলীয়া শিক্ষাৰ অপৰিহাৰ্য অংগ বুলি ধৰিছিল?
Correct Answer
A. ১৯৭৫
Explanation
The correct answer is 1975. This means that in the year 1975, the SCERT recognized school education as an essential component of environmental education.
18.
মাটি কালি অনুসৰি ভাৰতৰ বৃহত্তম আৰু ক্ষুদ্ৰতম ৰাজ্য দুখন হৈছে যথাক্ৰমে -
Correct Answer
D. ৰাজস্থান আৰু গোৱা
Explanation
The correct answer is "ৰাজস্থান আৰু গোৱা" because these two states, Rajasthan and Goa, are mentioned twice in the given options.
19.
জৈৱ গেছ হৈছে এবিধ প্ৰদুষণমুক্ত ইন্ধন, ইয়াৰ প্ৰধান উপাদান হৈছে -
Correct Answer
D. মিথেন, কাৰ্বন ডাই-অক্সাইড, হাইড্ৰ'জেন আৰু হাইড্ৰ'জেন চালফাইড
Explanation
The correct answer is "মিথেন, কাৰ্বন ডাই-অক্সাইড, হাইড্ৰ'জেন আৰু হাইড্ৰ'জেন চালফাইড". This is because methane (মিথেন) is a hydrocarbon that is a clean fuel and does not contribute to pollution. Carbon dioxide (কাৰ্বন ডাই-অক্সাইড) is a greenhouse gas that is released when fossil fuels are burned and contributes to climate change. Hydrogen (হাইড্ৰ'জেন) is a clean fuel that can be used in fuel cells to generate electricity. Hydrogen sulfide (হাইড্ৰ'জেন চালফাইড) is a toxic gas that is released from certain industrial processes and can be harmful to human health and the environment.
20.
বায়ুত প্ৰলম্বিত কণাৰ (SPM) সহনযোগ্য পৰিমাণ কি?
Correct Answer
A. প্ৰতি ঘনমিটাৰত ১০০ মাইক্ৰ'গ্ৰাম
Explanation
The correct answer is "প্ৰতি ঘনমিটাৰত ১০০ মাইক্ৰ'গ্ৰাম" which means "100 micrograms per cubic meter". This indicates the acceptable amount of Suspended Particulate Matter (SPM) in the air.
21.
তলৰ উল্লেখিত কোনটো মৌলিক কৰ্তব্য নহয়?
Correct Answer
C. নিজৰ ধৰ্ম ৰক্ষা কৰা
Explanation
The statement "নিজৰ ধৰ্ম ৰক্ষা কৰা" means "protecting one's own religion". This is not a fundamental duty mentioned in the question. The other options, "সংবিধান মানি চলা" (abiding by the constitution), "দেশৰ ঐক্য-সংহতি ৰক্ষা কৰা" (protecting the unity and integrity of the country), and "ৰাজহুৱা সম্পত্তি ৰক্ষা কৰা" (protecting public property), are mentioned as fundamental duties in the question.
22.
কি ধৰণৰ প্ৰানী সংৰক্ষণ কৰা উচিত?
Correct Answer
D. অৱলুপ্ত হৈ যাব ধৰা প্ৰানী
Explanation
The correct answer is "অৱলুপ্ত হৈ যাব ধৰা প্ৰানী" which translates to "endangered species" in English. This option refers to animals that are at risk of becoming extinct due to various factors such as habitat loss, poaching, and climate change. Conservation efforts are necessary to protect these species and prevent their disappearance from the natural world.
23.
উত্তৰ পূৰ্বাঞ্চলৰ এবিধ লুপ্তপ্ৰায় উদ্ভিদ হৈছে-
Correct Answer
B. কলচি উদ্ভিদ
Explanation
The correct answer is "কলচি উদ্ভিদ" because it is the only plant species mentioned in the options that is commonly found in the Uttara Purvanchal region. The other plant species mentioned may or may not be found in this region.
24.
ভুমি অৱনমন (Land degradation) কি কাৰণে হ'ব পাৰে?
Correct Answer
D. এই আটাইকেইটা হয়।
25.
অ'জন হোল (Ozone hole)
Correct Answer
B. পাৰ হৈ অনিষ্টকাৰী অতিবেগুনী ৰশ্মি ভূ-পৃষ্ঠত পৰেহি
Explanation
The correct answer states that harmful ultraviolet rays pass through the ozone hole and reach the Earth's surface. This is a significant problem because excessive exposure to these rays can cause various harmful effects, such as skin cancer, cataracts, and weakened immune system. The ozone layer acts as a protective shield that filters out most of the harmful UV radiation from the sun. However, the depletion of ozone in certain areas, known as the ozone hole, allows these harmful rays to penetrate through and pose a threat to living organisms on Earth.
26.
অৱলোহিত ৰশ্মি হৈছে
Correct Answer
C. ৰঙা পোহৰতকৈ অধিক তৰংগ দৈৰ্ঘ্যৰ অদৃশ্য পোহৰ
Explanation
The correct answer is "ৰঙা পোহৰতকৈ অধিক তৰংগ দৈৰ্ঘ্যৰ অদৃশ্য পোহৰ" which means "Visible light has more wavelength in red color". This answer states that red light has a longer wavelength compared to other colors, making it more visible to the human eye.
27.
সেউজ গৃহ প্ৰভাৱৰ (green house effect) কাৰণে
Correct Answer
A. পৃথিৱীৰ গড় উষ্ণতা একে থাকে
Explanation
Due to the greenhouse effect, the average temperature of the Earth remains constant. The greenhouse effect is caused by the presence of greenhouse gases in the Earth's atmosphere, such as carbon dioxide and methane. These gases trap heat from the sun, preventing it from escaping back into space. This leads to an increase in the average temperature of the Earth, known as global warming. Therefore, the correct answer is that the average temperature of the Earth remains constant due to the greenhouse effect.
28.
কি কি প্ৰধান কাৰকৰ বাবে বায়ুমণ্ডলত কাৰ্বন ডাই অ'ডাইডৰ পৰিমাণ বাঢ়ি আছে
Correct Answer
B. নিৰ্বনানীকৰণ আৰু জিৱাষ্ম ইন্ধনৰ দহন
Explanation
The increase in carbon dioxide levels in the atmosphere is primarily caused by deforestation and the burning of fossil fuels. Deforestation leads to a decrease in the number of trees, which are important for absorbing carbon dioxide through photosynthesis. The burning of fossil fuels, such as coal, oil, and natural gas, releases large amounts of carbon dioxide into the atmosphere. Therefore, the processes of deforestation and the burning of fossil fuels contribute to the increase in carbon dioxide levels in the atmosphere.
29.
বিশ্বখাদ্য আৰু কৃষিসংস্থাৰ (FAO) মতে এজন সুস্থ মানুহে দৈনিক নিম্নতম কিমান কেলৰি খাদ্য গ্ৰহন কৰিব লাগে?
Correct Answer
C. ২৫০০ কেলৰি
Explanation
According to the Food and Agriculture Organization (FAO), a healthy adult requires a minimum intake of 2500 calories per day.
30.
জাতীয় সংহতি গঠনত কাৰ ভূমিকা আটাইতকৈ বেছি?
Correct Answer
A. শিক্ষা
Explanation
Education plays a crucial role in the formation of national unity. Through education, individuals are exposed to different perspectives, cultures, and ideas, which helps foster a sense of national identity and unity. Education also promotes tolerance, understanding, and respect for diversity, which are essential for maintaining harmony and unity within a nation. Additionally, education equips individuals with the knowledge and skills necessary for active participation in the development and progress of their country, further strengthening national unity.