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एक इंजन कूलिंग प्रणाली में, एक थर्मोस्टैट का क्या कार्य होता है?

Who among the following was the first elected President of the Central Legislative Assembly in 1925?

आसन बैराज विहार का सम्बन्ध है–

What is the size of colloidal particle? कोलाइडी कण का आकार क्या होता है ?

Which of the following statement/s is/are not correct (A) Tropical cyclones are intense high-pressure areas (B) Tropical cyclones are also called hurricane Select the correct answer using the code given below:

The keyword struct and class differ in C++ context- C++ में कीवर्ड और वर्ग भिन्न होता है–

Learners feel engaged and actively involved in process of learning when: शिक्षार्थी अधिगम प्रक्रिया में व्यस्त और सक्रिय रूप से शामिल महसूस करते हैं जब:

लोकतंत्र से क्या तात्पर्य है?

Directions: Read the passage given below and answer the questions that follow (Q. No. 311 to 319) by selecting the correct/most appropriate options. Man, who is believed to have evolved from apes, is a curious mixture of varied motives. He is not only the subject of needs but is also their creator. He not only sees to satisfy his needs but also caters to his desire for beauty and grace. He is eager to satisfy his passion for more and more knowledge. Although in a general way, the maxim 'necessity is the mother of invention' is true, it is by no means the whole truth. Man is something much greater than an intelligent being using his intellect to make newer inventions from time to time. He has within him a spirit which is ever exhorting him to cut down his need and learn to be happy with what he has. The real purpose underlying this maxim lies in its utility in the worldly sense. It tells us to be up and doing, not to be passive in our attitude to life. It asks us not to remain slaves of old habits and ways of life. We must face the new situations with a creative mind. Every new difficulty, every new problem, which confronts us in life, can be tackled successfully with the spirit of inventiveness. What does the maxim mentioned in the pasage teach us?