Types and Distribution of Forest and Wildlife Resources | ||
In India, forest and wildlife resources are owned and looked after by the government of India through its Forest Department.
Forests are classified under three categories by the Forest Department
The most valuable forests are classified as Reserved forests. These forests are protected under the conservation acts. More than half of the total forest land in India comes under Reserved Forests.
Forests that are protected from further destruction are called Protected Forests. One-third of the total forest areas in India are classified as Protected forests.
Forests and wastelands belonging to both government and private individuals and communities are classified as Unclassed Forests.
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1. Give two different examples of pair of (i) similar figures. (ii) non-similar figures. Solution: Two square of sides 4 cm and 8 cm each. A rhombus and a trapezium . 2. State whether the following quadrilaterals are similar or not Solution: Similar 3. In the figure (i) and (ii), DE || BC. Find EC in (i) and AD in (ii). Solution: (i) In D ABC DE is parallel to BC By Basic Proportionality Theorem ------------------- (1) Given: AD = 1.5 cm, DB = 3 cm, AE = 1 cm Let EC = ‘x’ cm Applying in (1) 1.5x = 3 x = x = 2 cm EC = 2cm (ii) Since DE || BC, using BPT …………………………. (1) Given: DB = 7.2 cm, AE = 1.8 cm, EC = 5.4 cm Let AD be = x sub. in (1) x = = \ AD = 2.4 cm 4. E and F are points on the sides PQ and PR respectively of a Δ PQR. For each of the following cases, state whether EF || QR (i) PE = 3.9 cm, EQ = 3 cm, PF = 3.6 cm and FR = 2.4 cm (ii) PE = 4 cm, QE = 4.5 cm, PF = 8 cm and RF = 9 cm (iii) PQ = 1.28 cm, PR = 2.56 cm,