10th std Geography lesson 1 all answer
Answers
Answer:
1. Multiple choice questions.
(i) Which one of the following type of resource is iron ore?
(a) Renewable
(b) Biotic
(c) Flow
(d) Non-renewable
Answer:
Non-renewable
(ii) Under which of the following type of resource tidal energy cannot be put?
(a) Replenishable
(b) Human-made
(c) Abiotic
(d) Non-recyclable
Answer:
Replenishable
(iii) Which one of the following is the main cause of land degradation in Punjab?
(a) Intensive cultivation
(b) Deforestation
(c) Over irrigation
(d) Overgrazing
Answer:
Over irrigation
(iv) In which one of the following states is terrace cultivation practised?
(a) Punjab
(b) Plains of Uttar Pradesh
(c) Haryana
(d) Uttarakhand
Answer:
Uttarakhand
(v) In which of the following states black soil is predominantly found?
(a) Jammu and Kashmir
(b) Maharashtra
(c) Rajasthan
(d) Jharkhand
Answer:
Maharashtra
2. Answer the following questions in about 30 words.
(i) Name three states having black soil and the crop which is mainly grown in it.
Answer:
3 states are
Maharashtra
Gujarat
Madhya Pradesh
The crop grown is cotton.
(ii) What type of soil is found in the river deltas of the eastern coast? Give three main features of this type of soil.
Answer:
The type of soil found in river deltas is Alluvial Soil.
Very fertile, and therefore good for the cultivation of crops
Consists of various proportions of sand, silt and clay
It has a good quantity of potash, lime and phosphoric acid, which is good for the growth of paddy and sugarcane.
(iii) What steps can be taken to control soil erosion in the hilly areas?
Answer:
The main techniques that can be used are given below.
Contour ploughing
Terrace farming
Strips of grass are allowed to grow between the crops. This method is known as strip cropping.
(iv) What are the biotic and abiotic resources? Give some examples.
Answer:
Biotic resource:
These are resources that are obtained from the biosphere
These resources have life
Examples are plants, animals, fish, human beings, livestock etc.
Abiotic resource:
These resources are composed of non-living things
Examples are water, minerals, metals, wind, solar energy