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(i) Equal to (ii) Dispersion (iii) Concave (iv) Inverted (v) Spiracles (vi) Adenosine triphosphate (vii) Kara Kum; Turkmenistan (viii) June; October ** <span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">Ans. 2) Match the followings: **  <span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;"> ** __A__ __B__ **  <span style="margin: 0in 0in 0pt 0.75in; mso-add-space: auto; mso-list: l7 level1 lfo2; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(i) Sprinkler - (v) Modern method of irrigation  <span style="margin: 0in 0in 0pt 0.75in; mso-add-space: auto; mso-list: l7 level1 lfo2; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(ii) Leaching - (vi) Harmful for aquatic animals  <span style="margin: 0in 0in 0pt 0.75in; mso-add-space: auto; mso-list: l7 level1 lfo2; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(iii) Implement - (iii) Plough <span style="margin: 0in 0in 0pt 0.75in; mso-add-space: auto; mso-list: l7 level1 lfo2; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(iv) Hypermetropia - (ix) Convex lens <span style="margin: 0in 0in 0pt 0.75in; mso-add-space: auto; mso-list: l7 level1 lfo2; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(v) Non-luminous object - (viii) Pen <span style="margin: 0in 0in 0pt 0.75in; mso-add-space: auto; mso-list: l7 level1 lfo2; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(vi) Plane mirror - (x) Virtual and upright image <span style="margin: 0in 0in 0pt 0.75in; mso-add-space: auto; mso-list: l7 level1 lfo2; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(vii) Physical process - (iii) Breathing <span style="margin: 0in 0in 0pt 0.75in; mso-add-space: auto; mso-list: l7 level1 lfo2; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(viii) Organic fertilizers - (vii) Humus <span style="margin: 0in 0in 0pt 0.75in; mso-add-space: auto; mso-list: l7 level1 lfo2; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(ix) Chest - (iv) Thorax <span style="margin: 0in 0in 10pt 0.75in; mso-add-space: auto; mso-list: l7 level1 lfo2; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(x) Aquatic plants - (ii) Dissolved oxygen ** <span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">Ans. 3) True or False: ** <span style="margin: 0in 0in 0pt 0.75in; mso-add-space: auto; mso-list: l4 level1 lfo3; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(i) True  <span style="margin: 0in 0in 0pt 0.75in; mso-add-space: auto; mso-list: l4 level1 lfo3; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(ii) False  <span style="margin: 0in 0in 0pt 0.75in; mso-add-space: auto; mso-list: l4 level1 lfo3; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(iii) False  <span style="margin: 0in 0in 0pt 0.75in; mso-add-space: auto; mso-list: l4 level1 lfo3; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(iv) False <span style="margin: 0in 0in 0pt 0.75in; mso-add-space: auto; mso-list: l4 level1 lfo3; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(v) True <span style="margin: 0in 0in 0pt 0.75in; mso-add-space: auto; mso-list: l4 level1 lfo3; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(vi) True <span style="margin: 0in 0in 0pt 0.75in; mso-add-space: auto; mso-list: l4 level1 lfo3; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(vii) False <span style="margin: 0in 0in 0pt 0.75in; mso-add-space: auto; mso-list: l4 level1 lfo3; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(viii) False <span style="margin: 0in 0in 0pt 0.75in; mso-add-space: auto; mso-list: l4 level1 lfo3; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(ix) True <span style="margin: 0in 0in 10pt 0.75in; mso-add-space: auto; mso-list: l4 level1 lfo3; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(x) False ** <span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">Ans. 4) Give one word of each of the followings: ** <span style="margin: 0in 0in 0pt 0.75in; mso-add-space: auto; mso-list: l1 level1 lfo4; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(i) Honey / milk / meat / eggs  <span style="margin: 0in 0in 0pt 0.75in; mso-add-space: auto; mso-list: l1 level1 lfo4; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(ii) Wheat / barley / pea / gram  <span style="margin: 0in 0in 0pt 0.75in; mso-add-space: auto; mso-list: l1 level1 lfo4; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(iii) Plough / harrow / trowel / hoe  <span style="margin: 0in 0in 0pt 0.75in; mso-add-space: auto; mso-list: l1 level1 lfo4; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(iv) Canal irrigation / furrow irrigation / chain pump / moat / rahat / dhekli <span style="margin: 0in 0in 10pt 0.75in; mso-add-space: auto; mso-list: l1 level1 lfo4; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(v) Frog <span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;"> ** <span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">Ans. 5) Important functions / uses of the followings: ** <span style="margin: 0in 0in 0pt 0.75in; mso-add-space: auto; mso-list: l5 level1 lfo5; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(i) ** <span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">Alveoli  **<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;"> – Gaseous exchange takes place in the alveoli. Oxygen absorbed in the alveoli diffuses in the blood and carbon dioxide diffuses out of the blood.  <span style="margin: 0in 0in 0pt 0.75in; mso-add-space: auto; mso-list: l5 level1 lfo5; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(ii) ** <span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">Epiglottis  **<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;"> - The epiglottis covers the entrance to the larynx. It prevents food and drink from entering the trachea during swallowing (choking). <span style="margin: 0in 0in 0pt 0.75in; mso-add-space: auto; mso-list: l5 level1 lfo5; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(iii) ** <span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">Diaphragm **<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;"> – When the diaphragm contracts, oxygen-rich air is pulled into the lungs and when the diaphragm relaxes, carbon-dioxide-rich air pumped out of the lungs. <span style="margin: 0in 0in 0pt 0.75in; mso-add-space: auto; mso-list: l5 level1 lfo5; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(iv) ** <span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">Convex mirrors **<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;"> – <span style="margin: 0in 0in 0pt 1.25in; mso-add-space: auto; mso-list: l2 level1 lfo6; text-align: justify; text-indent: -0.25in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">a) As car wing mirror, to see through a wide angle behind the car.  <span style="margin: 0in 0in 0pt 1.25in; mso-add-space: auto; mso-list: l2 level1 lfo6; text-align: justify; text-indent: -0.25in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">b) In supermarkets and big shops to look out for shoplifters. <span style="margin: 0in 0in 0pt 1.25in; mso-add-space: auto; mso-list: l2 level1 lfo6; text-align: justify; text-indent: -0.25in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">c) In buses, so that the driver can view the whole bus.  <span style="margin: 0in 0in 0pt 0.75in; mso-add-space: auto; mso-list: l5 level1 lfo5; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(v) ** <span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">Ploughing  **<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;"> –   <span style="margin: 0in 0in 0pt 1.25in; mso-add-space: auto; mso-list: l6 level1 lfo7; text-align: justify; text-indent: -0.25in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">a) It allows the roots to reach deeper in the soil. This helps to fix the plant more firmly to the ground. <span style="margin: 0in 0in 0pt 1.25in; mso-add-space: auto; mso-list: l6 level1 lfo7; text-align: justify; text-indent: -0.25in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">b) It helps in trapping air in the soil, which is necessary for roots to ‘breathe’. <span style="margin: 0in 0in 0pt 1.25in; mso-add-space: auto; mso-list: l6 level1 lfo7; text-align: justify; text-indent: -0.25in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">c) It helps the soil to retain moisture for a longer duration. <span style="margin: 0in 0in 0pt 1.25in; mso-add-space: auto; mso-list: l6 level1 lfo7; text-align: justify; text-indent: -0.25in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">d) It helps in bringing nutrient-rich soil on the top. <span style="margin: 0in 0in 0pt 1.25in; mso-add-space: auto; mso-list: l6 level1 lfo7; text-align: justify; text-indent: -0.25in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">e) It helps the soil to mix well with fertilizers. <span style="margin: 0in 0in 0pt 1.25in; mso-add-space: auto; mso-list: l6 level1 lfo7; text-align: justify; text-indent: -0.25in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">f) It helps in the removal of undesirable plants called weeds. <span style="margin: 0in 0in 0pt 0.75in; mso-add-space: auto; mso-list: l5 level1 lfo5; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(vi) ** <span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">Seed drill  **<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;"> – Seed drill is used to sow the seeds into the soil at appropriate distance from one another. It also helps in sowing the seeds at the correct depth, neither too shallow nor too deep.  <span style="margin: 0in 0in 10pt 0.75in; mso-add-space: auto; mso-list: l5 level1 lfo5; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(vii) ** <span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">National Seed Corporation  **<span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;"> - National Seed Corporation produces good quality agricultural seeds. It also helps in setting up seed-testing laboratories in different parts of India. ** <span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">Ans. 9) ** <span style="margin: 0in 0in 0pt 0.75in; mso-add-space: auto; mso-list: l0 level1 lfo8; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(i) Reflection of light from a plane mirror  <span style="margin: 0in 0in 0pt 0.75in; mso-add-space: auto; mso-list: l0 level1 lfo8; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(ii) Plane mirror  <span style="margin: 0in 0in 0pt 0.75in; mso-add-space: auto; mso-list: l0 level1 lfo8; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(iii) Virtual image  <span style="margin: 0in 0in 0pt 0.75in; mso-add-space: auto; mso-list: l0 level1 lfo8; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(iv) SY’ <span style="margin: 0in 0in 10pt 0.75in; mso-add-space: auto; mso-list: l0 level1 lfo8; text-align: justify; text-indent: -0.5in;"><span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">(v) <NSY’
 * <span style="font-family: 'Times New Roman','serif'; font-size: 12pt; line-height: 115%;">Ans. 1) Fill in the blanks: **