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Question
Which part of the plant should be watered?
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Solution
We should water the roots so that the plant grows healthy.
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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
We 'draw up a deed'. Complete the following phrase with an appropriate word.
________a deaf ear to
Explain the significance of the lines ‘I tie this Ridin creeper To fasten your soul to your body.’
How did the author feel about her mother's passion to make her a dancer?
Say why the speaker of the poem wishes to be a-
hawker
Go through the poem and state whether the following statement is true or false.
The newly planned city looks modern and amazingly beautiful.
Answer the following question in short.
What did the bundle in silken cloth contain?
Fill in the gap, choosing a word from the bracket to make an appropriate comparison.
(tall / quiet / humble / merry / busy / slippery / fast / sly / slow / big)
as ______ as a bee
Imagine you are the Crane. What actions and words of the Peacock would you not like? Write about it in short.
Write about one occasion when you have behaved like -
Mr. Nobody
List the various people and places mentioned in the passage. The places Milo visits and the people he meets have unusual names. Write the meanings of those names.
Prepare similar word chains using the following ideas.
size - big _______________.
‘Unke, Munke, Timpetoo,
I wish, my wish is coming true.’
Try to compose two other funny magical chants that have rhyming lines.
Enact the play.
Did he hire Kiouni? Why?
Who helped Jaswant in the battle against Chinese?
Choose the odd one out.
Write the rhyming word.
culture - ______.
Identify the character or the speaker.
“I hope he is safe.”
He got an admission to study at Stanford University ______.
