Balbharati Class 5 Environmental Studies Part 1 Solutions Chapter 3 The Earth and its Living World
Welcome to NCTB Solutions. Here with this post we are going to help Maharashtra State board 5th class students by providing Balbharati Class 5 Environmental Studies Part 1 Solutions for Chapter 3, The Earth and its Living World. Here students can easily find all the answers for the questions in The Earth and its Living World. Also our Expert Environmental Studies Teacher’s solved all the question answer with easily understandable language with proper guidance so that all the students can understand easily. Here on this post students will get chapter 3 The Earth and its Living World solutions. Here all the Question Answer are based on Balbharati latest syllabus. Here all the question and answer are based on Maharashtra State Board latest syllabus.
The Earth and its Living World Exercise question Solutions :
Question no – (1)
In order to get rid of the dark patches one should always carry an umbrella whenever it is essential to leave the house. Sun coat or cotton clothes should be used so that the major portion of the body is covered and is not exposed to the harsh sunlight. One should always apply sunscreen before leaving the house because sunscreen can protect the skin from harmful UV rays.
Question no – (2)
(a) Micro-organisms are important :
Micro – organisms plays a very crucial role in our day to day lives, as for example they are used for carrying out the fermentation of batters for dosa idli and they are also used for converting milk into curd etc. These micro – organisms decompose the dead and decaying waste of plants and animals and convert them into those simple substances that are used again by other plants and animals. These micro – organisms also play an essential role in the function of degradation. So for the purpose of degrading the deleterious and smelly substances, these micro – organisms are used and this in turn helps to clean up the environment.
(b) All the foodstuffs obtained from the sea :
Sea food incorporates different types of fishes and shell fish such as prawns, crab, octopus, snail and lobster etc. Humans usually consumes these sea foods and there are also some other eatable sea plants that are consumed by them. In coastal areas sea foods are consumed to a great extent because it acts as a rich source of protein. The other nutrients and minerals that are found in the sea food are also essential for health. Sea food are also used for the purpose of making medicines. Due to the ample availability of the prawns in the Indian waters, we can obtain a great deal of foreign exchange by exporting the prawns. Salt is also made by using sea water. For preparing manure, the waste portion of the sea food are used.
Question no – (3)
(a) Clouds are made of :
Clouds are formed when the air cools down to such an extent that it goes below the dew point and the air is unable to hold as much water vapour. Clouds are made up of small and fine water droplets in the sky. Clouds occupies an important place in earth’s weather.
(b) Biosphere :
The biosphere constitute the part of the earth where there is existence of life. A variety of different kinds of plants, animals and micro – organisms are present in almost everywhere on the planet earth such as on land, in water and in the air. Living things are visible in all major parts or layers of the earth such as lithosphere, hydrosphere and atmosphere. The interaction of all the living things with these spheres constitute a biosphere.
(c) There is a small hill and a mountain in my surroundings. The mountain ranges are visible from a distant distance. There are valleys and passes between these mountain ranges. So, the list of landforms are hill, mountain, valleys and passes.
- Hill :
Hill refers to a landform that is naturally raised portion of the earths surface. It is usually rounded but it is shorter than a mountain. It is easier to climb on the hills than mountains. Hills are not much high and they are also less steep. However, in comparison to a mountain, a hill generally have a visible summit.
- Valleys :
Valleys refers to an extended low area of land lying between mountain ranges or hills and usually have a river flowing from one end to another end. Over a quite long duration of time, most valleys are formed through land erosion by streams or rivers.
Question no – (4)
(a) Anil lives at the foot of a Hill.
(b) Ria lives in the Plateau region.
Question no – (5)
(a) Evaporation :
Due to the heat of the sun, water on the earth’s surface is continuously getting evaporated into water vapour. The phase of changing from liquid water into gaseous state is known as evaporation. Our wet clothes get dried only due to the process of evaporation. Evaporation plays an essential part in the process of raining.
(b) Evaporation :
Condensation refers to the process in which water vapour is converted into water on cooling. Due to the process of condensation, rainfall occurs. When water vapour reaches the higher surface of the atmosphere, it gets condensed and small droplets of water are formed.
(c) The water cycle :
Due to the heat of the sun, the water on the earth’s surface evaporates continuously and moves high up into the atmosphere. As it reaches higher, it cools and condenses into very small droplets of water and thus clouds are formed. When these small droplets combine together, they form bigger and heavier droplets of water which come down on the earth in the form of rain. So these three process of evaporation, condensation and raining proceeds in a continuous cycle. This is termed as water cycle.
Question no – (6)
(a) Fog and Storms are two examples of weather related events.
(b) Rivers and Glaciers are two examples of sources of water.
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