The coldest region on earth is the – (a) polar region (b) tropical region (c) temperate region (d) coastal region
a) Polar region Explanation There are two main polar regions in the world, which are the Arctic and the Antarctic.... View Article
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Read the following environmental conditions of tropical rain forests. (i) A hot and humid climate (ii) Unequal lengths of day and night (iii) Abundant rainfall (iv) Abundant light and moisture Identify the conditions from the above list that are responsible for the presence of large number of plants and animals in tropical rain forests. (a) (i) and (ii) (b) (i) and (iii) (c) (i), (iii) and (iv) (d) (ii) and (iv)
c) (i), (iii) and (iv) Explanation Environmental conditions of tropical rain forests like – hot and humid climate, abundant rainfall,... View Article
Which of the following statement is incorrect for penguins? (a) They huddle together (b) They cannot swim (c) They have webbed feet (d) They have streamlined body
b) They cannot swim Explanation Penguins are good swimmers. They have flipper-like wings, streamed body, and also webbed feet. enguins... View Article
Given below are some adaptive features of animals: (i) A layer of fat under the skin (ii) Long, curved and sharp claws (iii) Slippery body (iv) Thick white fur Which of them are the adaptive features of a polar bear? (a) (i) only (b) (i) and (ii) only (c) (i), (ii) and (iii) only (d) (i), (ii), and (iv) only
d) (i). (ii), and (iv) Explanation The body of polar bear is covered with thick white fur which helps the... View Article
Paheli went to a wildlife sanctuary where she saw dense vegetation of trees, shrubs, herbs and also a variety of animals like monkeys, birds, elephants, snakes, frogs, etc. The most likely location of this sanctuary is in the – (a) temperate region (b) tropical region (c) polar region (d) coastal region
b) Tropical region Explanation Forest is a large geographical area dominated by trees, animals of various species, aquatic biomes and... View Article
Which of the following briefly describes the desert climate? (a) Hot and humid (b) Dry and humid (c) Hot and dry (d) Hot and wet
c) Hot and dry Explanation Deserts have very little rainfall in a year. That’s why the climate of the desert... View Article
Out of the given definitions, which is the most appropriate definition of climate? (a) Changes in weather conditions in a year. (b) The average weather pattern for many years. (c) Change in the weather pattern in a few years. (d) Weather conditions during summer.
(b) Average weather pattern of many years Explanation The average weather pattern taken over a long time (say 25 years)... View Article
The maximum and minimum temperature displayed daily in the weather bulletin refer to the – (a) highest day temperature and lowest night temperature of the day. (b) highest day temperature and highest night temperature of the month. (c) the temperature recorded at 12 noon and at midnight (00.00 hrs). (d) the average highest temperature of the day and the average lowest temperature of night.
a) The Highest day temperature and lowest night temperature of the day. Explanation The highest temperature of a day is... View Article
“Forests are our lifeline.” Write five sentences on this topic.
Forests are our lifeline. We all depend upon forests in some way or the other for survival. Forests provide us... View Article
All the needs of animals living in a forest are fulfilled. Justify this statement in a few sentences.
Animals will fulfil their needs in the forest in all means. Forests provide animals with food to eat. Forests provide... View Article
Give any four factors which are responsible for the destruction of forests.
Trees are being destructed because of the following reasons- i) Industrialisation ii) Area needed for constructing buildings. iii) The growing... View Article
People say that nothing goes waste in a forest. Can you explain, how?
The dead plants, dry leaves, remain of dead plants and animals and animal tissue are converted into a dark-coloured substance... View Article
Name any four useful products other than wood, which we get from forests.
Forests not only give us wood but also materials like latex, oils, spices, turpentine, etc. Explanation Life in forests is... View Article
Deforestation may lead to floods. Why?
Deforestation can be defined as the large-scale removal of trees from forests (or other lands) for the facilitation of human... View Article
“A bunch of seedlings were seen sprouting on a heap of animal dropping in a forest.” How do you think is the seedling benefited from the animal dung?
The animal dung provides nutrients to the seedlings. The essential nutrients required for the growth of plant is readily absorbed... View Article
Two friends shared their experiences of their vacation trip to two different forests. Do you think they would have seen the same type of plants and animals during their respective trips? Give reason.
Every forest has different type of climatic conditions because of which there are various plants and animals in every forest.... View Article
Give names of any four birds which you expect to see in a forest.
Four birds that could be seen in forest are: Kingfisher, hornbill, Jungle crow, Myna. A forest is a large area which... View Article
Paheli wrote a food chain in the following way: frog → eagle → insects → grass → snake The chain is not in the correct order. Help her to write the food chain correctly.
The correct food chain will be: Grass → Insects → Frog → Snake → Eagle. Grass gets eaten by insects.... View Article
State true or false. Forests protect the soil from erosion.
True Explanation Forests helps in binding the soil together. Thus, prevent soil from erosion. Soil erosion is a continuous process that... View Article
State true or false. The forest keeps on growing and changing and can regenerate.
True Explanation The dead animals, fallen leaves, etc. all get collected on the floor of the forests. The decomposers act... View Article
