18 The Environment and Us | 5th EVS 1 chapter 18 lesson 18 questions Answers Maharashtra State Board
Автор: INFINITY ACADEMY DHULE
Загружено: 2022-03-01
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18 The Environment and Us | 5th EVS 1 chapter 18 lesson 18 questions Answers Maharashtra State Board
0:00 Introduction
0:38 Water hyacinth are formed in rivers and lakes due to pollution.
1:12 To control the water hyacinth should we remove and wastewater from households or washing clothes inverter should be banned.
2:27 region the number of birds, amphibians, small mammals and earthworms would increase.
4:21 Birds lay eggs.
4:39 After three-four weeks they become an adult bird and start laying eggs.
5:41 Industries let out some poisonous gases into the air.
6:19 obtained by clearing forests? We use land for agriculture, housing, industry and for building roads and railways by clearing forest.
7:10 of the environment. 1 Due to human intervention in nature the non living components are getting polluted.
8:16 If one factor of the environment Ini is damaged, it disturbs environmental balance.
9:00 This will be a threat to the whole living world.
10:37 If the plants on the earth are destroyed the number of animals also fall day by day.
11:05 Because of hunting, the population of wild animals is falling
13:18 Manmade - book, pen
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