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Question
What does the earth do when the day is over?
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Solution
The earth takes rest when the day is over.
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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
Suggest a few instances in the poem which highlight humour and irony.
Think and answer in your own words.
How do parents react when they see children soil their clothes in dust and heat?
A small thought, put in action, led to a great achievement. Pick out the lines from the beginning and end of the poem and explain their significance.
Go through the poem and state whether the following statement is true or false.
Planners take public consent for the alterations they make in the old structures of the city.
Correct the given sentence with justification.
The play is restricted to only a part of the woods.
There were no old cities left on the earth.
Choose the appropriate phrase to insert in the gap, to make the sentence meaningful. Use the appropriate form of the verb.
Sorrowful times are ______ darkness.
List and say whether the following statement agrees with the passage or not.
In a discussion, you should share your ideas with others.
Why does the poet say that the dewdrops greet the dawn?
Identify the character or speaker
He repented and implored his brother’s forgiveness.
Why did Dr. Ashok’s cousin call him?
He preferred handling mail by himself.
What is the setting of the story?
Find the rhyming word from the poem.
Country - ______.
What do you save? Why it is needed?
Leaf cutter ants drink ______.
The king shouted at Ani.
Recite the poem The Painter with correct intonation.
Activity: Live English: Packs, packets, pouches, wrappers
Given above is the picture of an imaginary food item’s packet. Let us see how to ‘read’ the matter on the packet as a vigilant consumer.
- Look at the wrapper and complete the sentences.
- The name of the food item is ______.
- It is made by ______.
- It is a ______ food item. (Veg/Non-veg)
- The ______ sign indicates whether it is a Veg or Non-veg food item.
- The ingredients are ______, ______, ______, ______.
- The date of packing is ______ and the expiry date is ______.
- It should be consumed before ______ from the date of manufacturing.
- Try and obtain more information about the various symbols printed on the packet.
- Discuss the following -
- Why the ‘recipe’ is given on the packet.
- Why the packet tells us to visit the website of the company.
- What ideas are used to make the packet attractive?
- How you will verify whether something is good for you to eat.
