10th
- Write a note on good practices towards conserving forest and wildlife. Good practices towards conserving forest and wildlife are plenty. Nowadays, many non-governmental organisations are working towards creating... 1
- Describe how communities have conserved and protected forests and wildlife in India. Indian forests are home to different communities. These communities have a complex relationship with their environment. The Mundas and the S... 1
- How have human activities affected the depletion of flora and fauna? Explain. Human activities such as poaching, deforestation, the expansion of railways, agriculture, commercial and scientific forestry, and mining are... 1
- What is biodiversity? Why is biodiversity important for human lives? Biodiversity is immensely rich in wildlife and cultivated species, diverse in form and function, but closely integrated in a system through... 1
- Match the following. Reserved forests Protected forests Unclassed forests Reserved forests forests are regarded as most valuable as far as the conservation of forest and wildlife resources Protected forests forest... 1
- Match the following animals with their category of existence. Animals/Plants Category of existence Animals/Plants Category of existence Black buck Endangered Asiatic elephant Vulnerable Andaman wild pig Endemic Himalayan brown bear Rare Pi... 1
- Which of the following conservation strategies do not directly involve community participation? Correct option is d) Demarcation of Wildlife sanctuaries 2
- Which of these statements is not a valid reason for the depletion of flora and fauna? Correct option is c) Grazing and fuel wood collection 2
- Solve the puzzle by following your search horizontally and vertically to find the hidden answers. (i) Resources (ii) Minerals (iii) Black (iv) Laterite (v) Afforestation (vi) Alluvial 1
- How have technical and economic development led to more consumption of resources? Technical and economic development have led to more consumption of resources on account of various factors such as: Technological developmen... 1
- Explain land use pattern in India and why has the land under forest not increased much since 1960-61? Land resources in India are primarily divided into agricultural land, forest land, land meant for pasture and grazing, and waste land. Waste... 1
- What are the biotic and abiotic resources? Give some examples. Biotic Resources: The resources which are obtained from the biosphere and have life are called Biotic Resources. For example, animals and pl... 1
- What steps can be taken to control soil erosion in the hilly areas? In hilly areas, soil erosion can be controlled by ploughing across contour-lines, making use of terrace farming techniques and using strips... 1
- What type of soil is found in the river deltas of the eastern coast? Give three main features of this type of soil. Alluvial Soil is found in the river deltas of the eastern coast. Three features of alluvial soil: Alluvial soils are very fertile. They are... 1
- Name three states having black soil and the crop which is mainly grown in it. Maharashtra, Madhya Pradesh and Chhattisgarh are states having black soil. Cotton is mainly grown in black soil. 1
- In which of the following states is black soil found? (a) Jammu and Kashmir (b) Maharashtra (c) Rajasthan (d) Jharkhand correct option is b) Maharashtra 2
- In which one of the following states is terrace cultivation practised? (a) Punjab (b) Plains of Uttar Pradesh Correct option is d) Uttarakhand 2
- Which one of the following is the main cause of land degradation in Punjab? Correct option is c) Over irrigation Over irrigation is the main cause of land degradation in Punjab 1
- Under which of the following type of resource can tidal energy be put? (a) Replenishable (b) Human-made (c) Abiotic Correct option is a) Replenishable Explaination:: tidal energy can be put in Replenishable type of resource 1
- Which one of the following type of resource is iron ore? (a) Renewable (b) Biotic (c) Flow (d) Non-renewable Correct option is d) Non-renewable Explaination:: iron ore is non-renewable resource 1
- A doctor has prescribed a corrective lens of power +1.5 D. Find the focal length of the lens. Power of lens, P= 1/f P= 1.5D f= 1/1.5 = 10/15 = 0.66 m A convex lens has a positive focal length. Hence, it is a convex lens or a convergin... 1
- Find the focal length of a lens of power -2.0 D. What type of lens is this? Power of lens, P= 1/f P= -2D f= -1/2 = -0.5 m A concave lens has a negative focal length. Hence, it is a concave lens. 1
- An object of size 7.0 cm is placed at 27 cm in front of a concave mirror of focal length 18 cm. https://www.youtube.com/watch?v=meqKmlYN_p8&ab_channel=2Piclasses An object of size 7.0 cm is placed at 27 cm in front of a concave mirror o... 2
- An object 5 cm is placed at a distance of 20 cm in front of a convex mirror of radius of curvature 30 cm. https://youtu.be/Axatke6lD44 2