Across:
2. Loop like the bend of a river
4. Solid form of water
7. Moving mass of ice
9. Sudden descent of water in the bed of a river
11. Natural cavity on weak rocks formed by the action of waves
12. Embankment on a river that keeps it in its channel
13. Large body of water
14. Dry area where sand dunes are found
15. Small hill of sand caused by the action of wind
16. Flat plain formed by river deposits during time of flood
Down:
1. Rise and fall of water caused by friction of wind on water surface
3. Flow of water in a channel
5. Steep perpendicular face of a rock along a sea coast
6. Debris of boulder and coarse material carried by glacier
8. Crescent shaped lake formed by a meandering river
10. Fine sand deposited by the action of wind
13. Isolated mass of rising steep rock near a coastline
14. Alluvial tracts of land formed by the river deposits at the mouth of a river
(i) Glacier (c) River of ice
(ii) Meanders (d) Rivers
(iii) Beach (a) Sea shore
(iv) Sand dunes (h) Deserts
(v) Waterfall (g) Hard bed rock
(vi) Earthquake (e) Vibrations of earth
(i) (b) Beach ✓
(ii) (c) Moraine ✓
(iii) (a) Volcano ✓
(iv) (a) Deserts ✓
(v) (b) River valleys ✓
(i) Plates move because of the movement of molten magma inside the earth. The molten magma moves inside the earth in a circular manner.
(ii)The forces which act on the surface of the earth are known as exogenic forces, whereas the forces which act in the interior of the earth are known as endogenic forces.
(iii)The wearing away of landscape by different agent of nature like wind, water, and ice is known as erosion.
(iv) Layers of fine soil and other materials known as sediments are deposited along the banks of river, whenever a river floods. This leads to the formation of a fertile floodplain.
(v) When the wind blows in a desert, it transports sand from one place to another. When it stops blowing, the sand falls and gets deposited in low hill-like structures, which are known as sand dunes.
(vi) Beaches are formed when sediments carried by the sea waves are deposited along the shores. The finer sediments are deposited near the sea, while the coarser ones are deposited further inland.
(vii) Rivers start meandering when they enter the plains. In due course of time, the meander loop cuts off from the river and forms a cut-off lake, which is also known as an ox bow lake.
Following are some of the benefits of using NCERT Solutions by Extramarks.
1. The NCERT solutions for class 7 are prepared keeping in mind the necessary rules and format issued by the CBSE board thus providing students much-needed preview of the exam pattern of questions and preview of the exam that they are going to face during the final exams.
2. The students can be sure about the quality of the solutions as they are committed by highly experienced and expert teachers. These teachers have years of experience and they make sure that there is no mistake committed when preparing the solutions.
3. The NCERT 7 solutions are provided for the questions that are most likely to appear in the exam thus improving the efficiency of the students by helping them prepare for the important parts of the syllabus.
1. Start your revision early so you can revise well and grasp all the difficult concepts.
2. Organize your study time by making a timetable as it will help you manage your time accordingly.
3. Take mock tests and solve sample papers as they will help you learn time management during the exam and make you familiar with the exam pattern.
4. Take regular breaks, look after yourself by sleeping properly and eating well.
5. Know your exam well, explore the mock tests, and practice sample papers as much as you can.
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