What are the methods that can be adapted to contain landslides?
Construction of a retention wall to stop land from slipping and increase in the vegetation cover can be adapted to contain landslides.
Effective surface drainage system is a major way to control landslides during rainy season and spring flows.
Hazard mapping can locate areas prone to landslides. These areas can be avoided for
building settlements and hence avoid loss of life and property in the event of a Landslide.
Tick the correct answer.
(i) Which one of the following does not make a substance a resource?
(a) utility (b) value (c) quantity
(ii) Which one of the following is a human-made resource?
(a) medicines to treat cancer
(b) spring water
(c) tropical forests
(iii) Complete the statement. Biotic resources are
(a) derived from living beings.
(b) made by human beings.
(c) derived from non-living things.
Write a short note on the significance of time and technology in making a substance a resource.
State whether each of the following statements is true (T) or false (F).
(i) We should waste water since it is a renewable resource and we do not need to be careful in its use.
(ii) A resource always has the same economic value.
(iii) With respect to electricity, water was a potential resource until few years back.
(iv) All natural sources of energy are renewable.
(v) A farmer is a human resource.
(vi) Resources need to be conserved for the future generations.
(vii) Sustainable development is a way to use resources carefully as well as saving them for future.
Activity
"Rahiman paani raakhiye,
Bin paani sab soon.
Paani gaye na ubere Mod, manus, choon…"
[Says Rahim, keep water, as without water there is nothing. Without water pearl, swan and dough cannot exist.] These lines were written by the poet Abdur Rahim Khankhanam, one of the nine gems of Akbar's court. What kind of resource is the poet referring to? Write in 100 words what would happen if this resource disappeared?
Choose the correct option.
(i) Which of these is not a resource?
(a) the Indian Prime Minister
(b) your Geography book
(c) a small piece of paper
(d) none of these
(ii) Which of these does not have economic worth but is valuable?
(a) shoes (b) mountains
(c) coal (d) none of these
(iii) The types of resources on basis of stock are
(a) ubiquitous and localised
(b) actual and potential
(c) renewable and non-renewable
(d) abiotic and biotic
(iv) Which of the following is a non-renewable resource?
(a) solar energy (b) water (c) soil (d) natural gas
(v) Which of these is an example of sustainable development?
(a) ignoring the lights when they are
switched on but not required
(b) not wasting paper
(c) using coal and petroleum deposits at a fast pace
(d) none of these
Answer the following questions.
(i) Why are resources distributed unequally over the earth?
(ii) What is resource development?
(iii) Why are human resources important?
(iv) What is sustainable development?
Fill in the blank spaces given to complete each sentence.
(i) A substance becomes a resource if it has …………..
(ii) ………….. and …………. are two important factors which make a substance a resource.
(iii) On the basis of level of development, resources are classified into ……………. and …………..
(iv) An actual resource to crazy might have been a ……………. resource some time ago.
(v) Windmills generate …………..energy which is a resource because it will never end up.
(vi) Although renewable resources can be replenished, we should be …………… regarding their use.
(vii) Coal and petroleum are examples of ………….. resources.
(viii) Air is a ubiquitous resource since it is found ………………..
(ix) Physical factors affecting the presence of a localised resource are …………….. , ……………… and ……………
(x) Using resources carefully and giving them time to get renewed is called ………………..
Differentiate between the followings.
(a) Potential and actual resources (b) Ubiquitous and localised resources
