SS: VII M. M: 50
1. Short answer type questions: (any 10) (2 marks each) (20)
(a) Limestone is calcium carbonate. What happens when it is heated?
(b)Explain neutralization reaction giving suitable example.
(c) What changes take place when quicklime is placed in water?
(d)Write differences between aerobic and anaerobic respiration.
(e) Why is transpiration an important and necessary process in plants?
(f) Name two factors which can help in increasing the strength of an
electromagnet?
(g)Why are coils made from Nichrome are used as heating coils?
(h)Why do we make use of convex mirror as rear view mirrors?
(i) What is meant by lateral inversion in a plane mirror?
(j) What is the importance of groundwater for human beings?
(k)What is drip irrigation?
2. Long answer type questions: (any 10) (3 marks each) (30)
(a) Name three mineral acids?
(b)What are the similarities in the process of respiration and burning?
(c) Why ventricles have thicker walls and stronger muscles than auricles?
(d)Differentiate between an incandescent lamp and a fluorescent tube?
(e) Why chillies kept in a cylindrical bottle of vinegar appeared to be enlarged?
(f) What are the causes of depletion of groundwater?
(g)Draw well labelled diagram of human respiratory system?
(h)Draw a well labelled diagram of human heart?
(i) Draw a well labelled diagram of human urinary system?
(j) Show the formation of an electric bell using a well labelled diagram?
(k)Show rainwater harvesting using diagram?
Answers
Answered by
0
Answer:
a)co2 is released
Explanation:
Similar questions