CBSE Class 10th Science | Chapter 4. Carbon and its Compounds | Solved Exercises

Points to Remember - What you have learnt

1. Carbon is a versatile element that forms the basis for all living organisms and many
   of the things we use.
2. This large variety of compounds is formed by carbon because of its tetravalency
   and the property of catenation that it exhibits.
   
3. Covalent bonds are formed by the sharing of electrons between two atoms so that
   both can achieve a completely filled outermost shell.

CBSE Class 7th ( VII ) History - Our Pasts - II : Chapter 2. New Kings and Kingdoms - Solved Exercises

Intext Questions

Intext Questions Page No.16

Question 1. Locate the Gujara-Pratiharas, Rashtrakutas, Palas, Chiolas an Chahamanas (Chauhans) Can you identify the present-day over which they exercised control?

Answer.The following table show the present-day states over they exercised control:

S.No	Dynasties	Present-day states
1	Gujara-Pratiharas	Western Uttar Pradesh, Northern Madhy Pradesh.
2	Rashtrakutas	Maharashtra, Central Madhya Pradesh, Northern Andhra Pradesh and Karnataka.
3	Palas	Bengal and North East of India.
4	Cholas	Tamil Nadu.
5	Chahamanas (chauhans)	Eastern Rajasthan, Delhi, Haryana, Punjab.

CBSE Class 7th (VII) History - Out Pasts - II : Chapter 1. Tracing Changing through a Thousand Years - Solved Exercises

Intext Question - Page No.2
Question 1.Look at the areas in the interior of the subcontinent on Map to of the textbook. Are they aqs detailed as those on the coast? Follow the course of the River Ganga and see how it is shown.Why do you think there is a difference in the level of detail and accuracy between the coastal and inland areas in this map?.
Answer.
1. Not the areas in the interior of subcontinent on Map to are not as detailed as those on the coast.
2. The European sailors and merchants who used this map, did not go to the inland places of the subcontinent much as they interacted with the coastal areas.
3. Therefore, the level of detail and accuracy of coastal areas is better than the inland areas, in the map.