Skip to main content

16



Maximum time: 40 minutes

Maximum marks: 20 marks


1.   What are 3 R�s used to save environment? 1
2.   Why fossil fuels should be used judiciously?1
3.   Name any one stakeholder. 1
4.   What are the products formed when coal and petroleum are burnt? 2
5.   Why the forests are called as biodiversity hot spots? 2
6.   Name two industries based on forest produce. 2
7.   What are the advantages of water? explain it with respect to forest, wildlife and water resources.4
8.   Dams are constructed on the river for multipurpose use. Give its advantages and disadvantages. 4
9.   How does mining cause pollution? 2
10.   Why it is necessary to conserve water and wildlife? 1


Comments

Post a Comment

Popular posts from this blog

10

MAXIMUM TIME: 40 MINUTES MAXIMUM MARKS: 25 MARKS 1.    Name the type of mirror used in following situations (3)          a. Headlights of the car          b. Side/rear view mirror of a vehicle          c. Solar furnace 2.    What are two types of reflexive index. (2) 3.    Differentiate between concave and convex lens. (3) 4.    Draw the diagram of path of light when it travels through a glass slab. (3) 5.    What are the properties of the image formed by plane mirror? (2) 6.    Write laws of reflection (2) 7.    Draw and explain the ray diagram formed by a convex mirror when (5)          a. Object is at infinity          b. Object...
Post a Comment
Read more

11

Maximum time: 40 minutes Maximum marks: 23 marks 1.    Name the transparent membrane through which light enters the first in the eyes. (1) 2.    What is the function of iris? (1) 3.    What is persistence of vision? (1) 4.    What is Tyndall effect? (1) 5.    The image formed on retina is inverted but we can see the objects erect. Why? (1) 6.    What is night blindness and color blindness? (2) 7.    Distinguish between presbyopia and hypermyopia (3) 8.    Draw a well labeled diagram of eye. (4) 9.    Draw a labeled diagram of rainbow formation. Also explain the phenomena. (4) 10.    Name three refractive defects of vision with help of diagram. Explain its reasons and correction of these defects. ?(5)
Post a Comment
Read more

6

MAX MARKS: 30 MAX TIME:60 mins 1.   List down the raw materials for photosynthesis? (1 Mark) 2.   Specify what is the role of bile juice in the process of digestion? (1 Mark) 3.   Name the respiratory organ in fish and earthworm. (1 Mark) 4.   Name the types of blood vessels used for the transportation of blood. (1 Mark) 5.   What is dialysis? (1 Mark) 6.   How is respiration in plants and respiration in animals different? (2 Marks) 7.   Draw the labeled diagram of the human digestive system. (2 Marks) 8.   How are alveoli designed and why? (2 Marks) 9.   Define excretion. What are the two organs in human beings that act as accessory excretory organs? (2 Marks) 10.   State the role of the following (i) Chloroplasts (ii) Diaphragm (iii) Larynx (3 Marks) 11.   Give reasons for the following: (i) The glottis is guarded by epiglottis. (ii) It is sai...
Post a Comment
Read more