THE SIDDIQUI ACADEMY

  1. What do you understand by ‘people as a resource’? Answer: ‘People as a resource’ is a term that means how the population can be an asset and not a liability. It a way of referring to the working class of society in terms of their existing productive skills and abilities. The population becomes human capital when an investment is made in the form of education and training. Education and health also help human beings to be an asset to the economy. Thus, people as a resource refers to the working population that results in the development of society. 2. How is human resource different from other resources like land and physical Capital? Answer: Human resources are different from other resources like land and physical capital because human beings can use other resources to give out productive output. However, resources like land and physical capital are dependent on human resource for their use and cannot give any productive output all by themselves. 3. What is the role of educati...

 1.  Modern farming methods require more inputs which are manufactured in industries. Do you agree? Answer: Yes, it is correct to say that modern farming methods require more inputs which are manufactured in industries. It is because modern farming methods use high-yielding varieties of seeds. These seeds require both chemical fertilisers and pesticides, agricultural implementations like tractors and proper irrigation facilities like electric tube wells, and all these elements are manufactured in industries. However, on the other hand, traditional farming methods use a relatively low-yielding variety of seeds and use cow dung and other natural manures as fertiliser, which is why they are less dependent on industrial outputs. 2. How did the spread of electricity help farmers in Palampur? Answer: The spread of electricity helped the farmers of Palampur as it aided in the transformation of the irrigation system of the village. The farmers earlier used Persian wheels to draw water...

 1 . Match the following leaders with their roles in the making of the Constitution: Motilal Nehru President of the Constituent Assembly B.R. Ambedkar Member of the Constituent Assembly Rajendra Prasad Chairman of the Drafting Committee Sarojini Naidu Prepared a Constitution for India in 1928 Answer. Motilal Nehru Prepared a Constitution for India in 1928 B.R. Ambedkar Chairman of the Drafting Committee Rajendra Prasad President of the Constituent Assembly Sarojini Naidu Member of the Constituent Assembly 2. Read again the extracts from Nehru’s speech ‘Tryst with Destiny’ and answer the following: Why did Nehru use the expression “not wholly or in full measure” in the first sentence? What pledge did he want the makers of the Indian Constitution to take? “The ambition of the greatest man of our generation has been to wipe every tear from every eye”. Who was he referring to? Answer. Jawahar Lal Nehru in his speech, ‘Tryst with Destiny’ used the expression, ‘not wholly or in full meas...

  Balanced and Unbalanced Forces When balanced forces are applied to an object, there will be no net effective force acting on the object. Balanced forces do not cause a change in motion. Unbalanced forces acting on an object change its speed and/or direction of motion. It moves in the direction of the force with the highest magnitude. Frictional Force The force that opposes relative motion is called friction. It arises between the surfaces in contact. Example: When we try to push a table and it does not move is because it is balanced by the frictional force. First Law of Motion A body continues to be in the state of rest or uniform motion in a straight line unless acted upon by an external unbalanced force. The First Law is also called the Law of Inertia. Inertia Basically, all objects have a tendency to resist the change in the state of motion or rest. This tendency is called inertia. All bodies do not have the same inertia. Inertia depends on the mass of a body. T...

  1. What is a tissue? Solution: A tissue is defined as a cluster of cells, which are similar in structure and work together to perform a particular function. 2. Name the types of simple tissues. Solution: The types of simple tissues are as follows: ➢ Parenchyma ➢ Collenchyma ➢ Sclerenchyma 3. What are the constituents of phloem? Solution: The phloem constitutes of the following four elements, they are: ➢ Sieve tube ➢ Companion cells ➢ Phloem parenchyma ➢ Phloem fibres 4.  Name the tissue responsible for movement of our body. Solution: Two tissues jointly are responsible for the movement of our body, namely: ➢ Muscular tissue ➢ Nervous tissue 5. What does a neuron look like? Solution: A neuron is a nerve cell consisting of the cell body with a nucleus and cytoplasm from which a long and thin hair-like structure emerges. Every neuron has one elongated part known as the axon, and several short and small branched structures known as dendrites. A single neuron can even be a meter ...

  1. Who discovered cells, and how? Solution: In 1665, Robert Hooke discovered cells while examining a thin slice of cork through a self-designed microscope. He observed that the cork resembled the structure of a honeycomb consisting of numerous tiny compartments. The minuscule boxes are referred to as cells. 2. Why is the cell called the structural and functional unit of life? Solution: Cells form the structure of an entity. A group of cells form a tissue, further an organ and ultimately an organ system. They perform fundamental functions and life processes such as respiration, digestion, excretion etc., in both unicellular and multicellular entities. They perform all the activities independently. Hence, cells are referred to as structural and fundamental units of life. 3. Why is the plasma membrane called a selectively permeable membrane? Solution: The plasma membrane is called as a selectively permeable membrane as it permits the movement of only certain molecules in and out of ...

 1.  What are the characteristics of the particles of matter? Solution: The characteristics of particles of matter are as follows: (a) Presence of intermolecular spaces between particles (b) Particles are in constant motion (c) They attract each other (d) All matter is composed of very small particles which can exist independently. Q2. Differentiate Solid, Liquid & gas? Solution: The difference in the characteristics of the three states of matter Characteristics Solid Liquid Gas Shape Fixed shape No Fixed shape No Fixed shape Volume Fixed volume Fixed volume No Fixed volume Intermolecular force Maximum Less than solids Very less Intermolecular space Very less More than solids maximum Rigidity/Fluidity Rigid/cannot flow Can flow/not rigid Can flow/not rigid Compressibility negligible compressible Highly compressible Convert the following temperature to Celsius scale: a. 300K          b. 573K Solution: a.  0°C=273K 300K=...