Sushovan Pal

    NON CONVENTIONAL SOURCES OF ENERGY I. Choose the correct option: (b) inexhaustible (b) Both A and R are true but R does not explain A. (d) river valleys (d) All of the above (a) It has low emission of greenhouse gases. (b) Both A and R are true but R does not explain A. (a) nuclear fission (a) Both A and R are true and R is the correct explanation of A. (b) CBG (b) Solar (d) All of them (a) Both A and R are true and R is the correct explanation of A. II. Answer the following questions: Q. 1 (a) What are non-conventional sources of energy? Non-conventional sources of energy are those developed recently as alternatives to conventional sources. They include solar, wind, tidal, geothermal, nuclear, and biogas energy. Most are renewable, inexhaustible, non-polluting, and cost-effective. (b) State two differences between conventional and non-conventional sources of energy. Conventional sources (e.g., coal, petroleum) are exhaustible, ...

  Defining Success, Goals, Values, and Choices How do goals, positive values, and positive choices help define success? Goals provide direction and a clear target to aim for, positive values shape the principles guiding behavior, and positive choices are the actions taken that lead to achievement. Together, they create a foundation for success by aligning what a person wants with how they act. How did you feel when you were listening to the panel? What were some of the things they talked about that you could relate to? That made you say, "Hey, me too"? Listening to the panel may have made me feel inspired and hopeful. They talked about overcoming challenges, staying motivated, and sticking to their values, which I could relate to from my own experiences. Moments of shared struggles or goals made me think, "Hey, me too." What goals will you set for yourself to achieve success in the future? Example goals to set could include improving academic performance, d...

Activity 1 Choose the correct answer from the given alternatives: নিম্নোক্ত বিকল্পগুলি থেকে সঠিক উত্তরটি নির্বাচন করো: (a) Father Wolf woke up at – (i) six o’ clock (ii) seven o’ clock (iii) eight o’ clock. (ক) ফাদার উলফ জেগে উঠেছিল – (i) ছ’টা (ii) সাতটা (iii) আটটা। Answer: Father Wolf woke up at – seven o’ clock. উত্তর: ফাদার উলফ জেগে উঠেছিল – সাতটা। (b) Tabaqui was the name of a – (i) jackal (ii) wolf (iii) tiger. (খ) তাবাকুই ছিল – (i) শিয়াল (ii) উলফ (iii) বাঘ-এর নাম। Answer: Tabaqui was the name of a – jackal. উত্তর: তাবাকুই ছিল – শিয়ালের নাম। (c) On that night the tiger had hunted a – (i) man (ii) bullock (iii) buck. (গ) ওই রাতে বাঘটি শিকার করেছিল – (i) মানুষ (ii) বলদ (iii) হরিণ। Answer: On that night the tiger had hunted a – man. উত্তর: ওই রাতে বাঘটি শিকার করেছিল – মানুষ। Activity 2 Identify which of the following statements are True and which are false. Give supporting statements for each of your answers. নিম্নোক্ত কোন কোন উক্তি সত্য এবং কোনগুলো মিথ্যা চিহ্নি...

  Summary: The Barter System What is the Barter System? The barter system is an ancient method of trade where goods and services are exchanged directly without the use of money. It was widely used before the invention of currency and involved people from various professions, such as potters, fishermen, weavers, and farmers, exchanging their goods and services. How the Barter System Works In the barter system, individuals trade their goods or services for other goods or services they need. For example, a fisherman could exchange fish for a pot from a potter, or a farmer could trade wheat for clothes from a weaver. Merits of the Barter System 1.      No Need for Money: Trade can occur without the use of currency. 2.      Builds Trust: It fosters trust between individuals involved in the trade. 3.      Useful During Inflation: It can be valuable during times...

  conventional sources of energy I. Choose the correct option: Which types of resources of energy are coal, petroleum, and natural gas? (d) Both (a) and (b) Coal, petroleum, and natural gas are conventional sources of energy because they have been used for a long time. They are also non-renewable sources because they cannot be replenished naturally at a rate that matches their consumption. ______ coal has ______ per cent of carbon content and is the most preferred variety of coal. (c) Anthracite, 90 Anthracite coal has the highest carbon content (90%) and is preferred for domestic use due to its high calorific value and smokeless burning. Bituminous coal is also known as ______. (a) coking coal Bituminous coal is often referred to as coking coal because it is used to produce coke, a key ingredient in steel manufacturing. Assertion (A): Natural gas is an eco-friendly ...