Advertisements
Advertisements
प्रश्न
Why did the dogs feel scared when they saw the jackal?
Advertisements
उत्तर
The dogs felt scared when they saw the jackal because he (jackal) was looking fearful in blue colour.
APPEARS IN
संबंधित प्रश्न
How did Helen benefit when Dr. Graham Bell accompanied her to the World Fair?
Read the text below and summarise it.
The Great Desert Where Hippos Once Wallowed
The Sahara sets a standard for dry land. It’s the world’s largest desert. Relative humidity can drop into the low single digits. There are places where it rains only about once a century. There are people who reach the end of their lives without ever seeing water come from the sky.
Yet beneath the Sahara are vast aquifers of fresh water, enough liquid to fill a small sea. It is fossil water, a treasure laid down in prehistoric times, some of it possibly a million years old. Just 6,000 years ago, the Sahara was a much different place.
It was green. Prehistoric rock art in the Sahara shows something surprising: hippopotamuses, which need year-round water.
“We don’t have much evidence of a tropical paradise out there, but we had something perfectly liveable,” says Jennifer Smith, a geologist at Washington University in St Louis.
The green Sahara was the product of the migration of the paleo-monsoon. In the same way that ice ages come and go, so too do monsoons migrate north and south. The dynamics of earth’s motion are responsible. The tilt of the earth’s axis varies in a regular cycle — sometimes the planet is more tilted towards the sun, sometimes less so. The axis also wobbles like a spinning top. The date of the earth’s perihelion — its closest approach to the sun — varies in cycle as well.
At times when the Northern Hemisphere tilts sharply towards the sun and the planet makes its closest approach, the increased blast of sunlight during the north’s summer months can cause the African monsoon (which currently occurs between the Equator and roughly 17°N latitude) to shift to the north as it did 10,000 years ago, inundating North Africa.
Around 5,000 years ago the monsoon shifted dramatically southward again. The prehistoric inhabitants of the Sahara discovered that their relatively green surroundings were undergoing something worse than a drought (and perhaps they migrated towards the Nile Valley, where Egyptian culture began to flourish at around the same time).
“We’re learning, and only in recent years, that some climate changes in the past have been as rapid as anything underway today,” says Robert Giegengack, a University of Pennsylvania geologist.
As the land dried out and vegetation decreased, the soil lost its ability to hold water when it did rain. Fewer clouds formed from evaporation. When it rained, the water washed away and evaporated quickly. There was a kind of runaway drying effect. By 4,000 years ago the Sahara had become what it is today.
No one knows how human-driven climate change may alter the Sahara in the future. It’s something scientists can ponder while sipping bottled fossil water pumped from underground.
“It’s the best water in Egypt,” Giegengack said — clean, refreshing mineral water. If you want to drink something good, try the ancient buried treasure of the Sahara.
Staff Writer, Washington Post
Why do you think Paul's mother was not satisfied with the yearly birthday gift of 1,000 pounds for five years.
Discuss the following in pairs or in small groups.
Exceptionally talented people are born so; talent cannot be cultivated
How does the poet tossed back from ecstasy into despair?
What can you do to show your love, respect, and support to the soldiers who fight for the country? Discuss this in the classroom. You can send greeting cards to them on various occasions, with the help of your teacher.
Prove with the theme of the play/extract that the deeper human emotion which profoundly interested Shakespeare was jealousy.
Read the story and write about the following in short.
Bushi Kiyo
Prepare similar word chains using the following ideas.
wind - breeze __________________.
Rohan had finished ______ rounds of the tree before Mrs. Groover discovered him.
Who said the following, to whom, and when?
“Mighty thy Teacher must be and divine.”
Read the word. Write the words that combine to make it.
snowwhite
Read the word. Write the words that combine to make it.
springtime
Marco Polo, Christopher Columbus, Ibn Battuta, Amerigo Vespucci, Xuanzang, Ferdinand Magellan, Bartolomeu Dias, Herodotus, Captain James Cook, Vasco De Gama.
What is common among these individuals? Browse Internet or refer books and share some information about them.
Why did Alice follow the rabbit?
There is a connection between the rhyming words and rhythms of the train. Present your views about it.
Recite the poem with correct intonation.
Although Helen could not hear or see, what kind of girl was she?
Find words from the passage which mean the same as the following.
- a malevolent desire for revenge (para 1)
- tactful (para 2)
- despise (para 3)
