Terminal bud 

1. The buds that grow at the tips of the stems or its branches are called terminal or apical buds. 

2. They lead to an increase in the length of the stem.

(i) The northern plains have been formed from the alluvium deposited by the mountain rivers.
(ii) They are located between the Himalayan rivers in the north and the Peninsular Plateau in the south.
(iii) They turned the soil on the surfaced land fertile for growing a rich harvest of variety of crops. This led to the development of the Indus Valley Civilization.
(iv) They are made up of deposits of alluvium and cover an area of 7 lakh sq. km.
(v) They are densely populated physiographic division of India and are believed to be highly productive in terms of agriculture.
(vi) The North Indian plains have the Indus river system in the west and the Ganga Brahmaputra river system in the East.
(vii) The first include Jhelum, Chenab, Ravi, Beas and Satluj. The Indus flows into the Arabian Sea. The second includes Ganga-Brahamaputra which combines with Meghna at the point when it drains into the Bay of Bengal. They form the world's largest and fastest growing delta. On the basis of difference of relief, they are divided into four parts-Bhabar, Terai, Bhangar and Khadar.
(viii) The northern plain is divided into three sections - Punjab plain, Ganga plain and Brahmaputra plain. The Ganga plain has diverse relief features. It has four belts.
(a) Bhabar is a belt of pebbles extending from 8-16 km in width in which stream disappears.
(b) Terai is a wet, swampy, marshy region with thick forests and wild life.
(c) Bhangar is a terrace-like feature made of old alluvium. It contains calcareous deposits called Kankar.
(d) Khadar is the flood plain which renewed everywhere and is very fertile.

A Constitution of a country is a set of written rules that are accepted by all people living together in a country. Constitution is the supreme law that determines the relationship among people living in a territory and also the relationship between the people and government. A constitution performs several functions:
(i) It generates a decree of trust and coordination that is necessary for different kind of people to live together.
(ii) It species how the government will be constituted, who will have power to take which decisions.
(iii) It lays down limits on the powers of the government and tells us what the rights of the citizens are.
(iv) It expresses the aspirations of the people about creating a good society.

Answer : M Hamel showed his love for the French language by telling the students that the French language was the most beautiful language in the world – the clearest and the most logical.

The order from Berlin brought all the routine hustle-bustle of the school life to a stand- still. The teacher, M. Hamel, became more sympathetic to his students and taught his lessons with more patience. The students became more attentive in their classes. The villagers, who were sitting at the usually empty back benches and had come to show their respect and gratitude to M. Hamel, regretted not going to school more than they did. The order also brought about a great change in the feelings of the people towards their country and their native language. There was a general sadness about not being able to utilise the opportunities of learning French when it was easily accessible.

The mood in the classroom when M.Hamel gave his last lesson was silent all in class ,every single student was quite and giving attention to Mr.Hamel's lecture even  everyone was sitting at there own place without making any kind of fuss . Everyone was present that day and also Mr.Hamel was also quite lost in his thoughts. There came an order from Berhin banning the teaching of French. In his last lesson Hamel taught so well that all the students understood word by word. It looked as if he wanted to pour everything in the minds of his students just in one stroke.

When M. Hamel gave his last French lesson in the classroom, there was no commotion. There was pin-drop silence. He was politely and dedicatedly talking with the students. There was no strictness, looked solemn, serious and deeply grieved. Whenever he spoke, his throat choked. He felt as if his bodily parts were being pierced.

For the poet, fire means the burning desire for the material things and ice means coldness that emerges in humans because of the desires and materialistic life. He finally concludes that both of these weapons are equally dangerous and will lead the world towards destruction.

There is no need for ‘fire’ to destroy the world. Even ‘ice’ is sufficient and ‘strong’ enough to cause the destruction of this world. If this world has to ‘perish twice’, then there is no need for fire to destroy it twice. ‘Ice’ is as ‘strong’ and ‘great’ a cause that can cause the end of this world.

The poet in 'Fire and Ice' confesses that he has 'tasted of desire' which means he has experienced desire and its effects. He has had many worldly desires which he compares to fire and then admits that they have a destructive quality. He speaks from first hand experience.

The Ashoka Chakra is rendered in navy blue on a white background replacing the symbol of the charkha of the pre-independence version of the flag. The chakra signifies that there is life in movement and death in stagnation. It represents the dynamism of a peaceful change.

On July 7, HRD Minister Ramesh Pokhriyal announced a major CBSE syllabus reduction with 30% of the syllabus slashed for the year 2020-21 for classes 9 to 12 because of the reduction in classroom teaching time due to the Covid-19 pandemic and lockdown.

CBSE has rationalized the syllabus with the help of suggestions from NCERT and the same has been notified by a new CBSE notification as well.

eleted syllabus of CBSE Class 12 English Core

Deleted syllabus of CBSE Class 12 English Elective

Answer:

molar mass ofCaCl2.6H2O = 40 + 2(35.5) + 6(18)

                                              = 219 g mol^-1

Molarity = weight of solute * 1000 / molar mass of solute * volume

  1 = weight of solute * 1 / 219 * 1

weight of solute = 219 gm

here volume is already given in litre so we don't need to multiply with (1000).

Adaptations in Polar Bear

The polar bear is a large, white bear which lives in north polar regions of the earth. The polar bear feeds mainly on fish and seal.

1) Polar bear has white colour which matches with its surroundings: Due to white colour, polar bear is not visible easily in the snowy white background and hence its prey is unable to see it. This adaptation (of white colour) helps the polar bear to catch its prey. The white colour of polar bear also protects it from its predators.

2) Polar bear has two thick layers of fur on its body: This fur protects the polar bear from extreme cold by preventing the loss of heat from its body. Thus, the two thick layers of fur keep the polar bear warm in extremely cold climate. The polar bear has also fur on its feet and toes. This protects it from cold when it walks on snow and ice.

3) Polar bear has a thick layer of fat under its skin: This layer of fat insulates the body of polar bear against heat loss and keeps it warm in cold climate.

4) Polar bear has a rounded body and small ears to keep the body surface area to a minimum.This reduces the heat loss from the body of polar bear.

5) Polar bear has big feet (or big paws) to spread the weight of its body on snow which prevent it from sinking into snow and make it walk on snow easily. Polar bear has long, curved and sharp claws which help it to walk and run on slippery ice.

6) Polar bear is a good swimmer: The big feet (or big paws) help the polar bear to swim well. Being a fast swimmer helps the polar bear to catch its prey (like seal) in water very easily.

7) Polar bear has a very strong sense of smell: The very strong sense of smell helps the polar bear in locating and catching its prey for food.

The birds which migrate from very cold regions to warmer regions in winter and go back after the winter is over, are called migratory birds. One of the most common migratory bird which comes to India every year for a few months is the Siberian crane.When winter sets in Siberia, and it gets extremely cold, the Siberian crane flies thousands of kilometres and comes to warmer places in India such as Bharatpur in Rajasthan , Sultanpur.The Siberian cranes fly back to Siberia when the winter ends there and climate becomes favourable.

The migratory birds usually fly high up in the sky where the wind flow is helpful and low temperature aids in dispersing the heat generated by the constant working of their flight muscles in flapping the wings.

Adaptations in Penguins

Penguin is an animal which lives in extremely cold south polar region of the earth. Penguins hunt for fish which they eat as food.

1) Penguin is black and white in colour but still it merges well with the white background of ice and snow.

2) Penguin has thick skin and a layer of fat below its skin which protect it from extreme cold.

3) Penguins live together in large numbers. Penguins huddle together to keep themselves warm.

4) Penguin has streamlined body, flipper-like wings and webbed feet which make it a good swimmer.

Adaptive Features Adapted by Elephants for Living in the Tropical Rainforest

•  They have a strong sense of smell and uses its trunk for smell and to hold food.
• They also use their trunk to hold food.
• They have long ears which help them in keeping cool in hot and humid climate.
• Long ears help them in hearing very soft sound.
• They have thick padded feet which help them in moving silently.

We find animals of certain kind living in particular climatic conditions because every living organism is adapted to live in the particular habitat. Every living thing develops their feature according to the area they live in.

For example, penguins have thick skin to protect themselves from cold and webbed feet to swim in water. It will not be able to survive in the hot climate of tropical regions as they developed thick skin for the protection from cold not from the hot and humid temperature.