अंग्रेजी ट्र्याक IELTS तयारी (Band 5.5–6.5) – English

English: प्रश्न र उत्तर

सही लागेको विकल्पमा थिच्नुहोस्। सही भए हरियो, गलत भए रातो देखिन्छ; ५ सेकेन्डपछि सही उत्तर र व्याख्या देखिन्छ।

सही: ० / ०

1761. Read the passage and answer the question. A lichen is not a single organism but a partnership between a fungus and an alga. The alga makes food by photosynthesis, while the fungus gives it shelter and holds water. Many lichens are very sensitive to air pollution, especially sulphur dioxide, so whether they are present or absent in an area can show how clean the air is. Why can lichens be useful to scientists studying the environment?

      कThey remove sulphur dioxide from the air. खThey produce water for other plants. गThey show how polluted the air is. घThey grow only in very clean soil.
      💬 टिप्पणी / गल्ती रिपोर्ट (०)

      छलफल / प्रश्न उत्तरमा गल्ती छ

      पठाउनुहोस्

      टिप्पणी जाँचपछि मात्र देखिन्छ।

1762. Read the passage and answer the question. Capsaicin, the substance that makes chillies taste hot, causes a burning feeling in mammals but has no such effect on birds. As a result, mammals, whose teeth crush the seeds, tend to avoid chillies, while birds eat them and later drop the undamaged seeds far away. Some scientists believe this is why chilli plants developed their heat in the first place. How certain is the writer about the reason chilli plants developed their heat?

      कIt is presented as a proven fact. खThe writer rejects the idea completely. गThe writer says nobody has studied it. घIt is presented as a belief held by some scientists.
      💬 टिप्पणी / गल्ती रिपोर्ट (०)

      छलफल / प्रश्न उत्तरमा गल्ती छ

      पठाउनुहोस्

      टिप्पणी जाँचपछि मात्र देखिन्छ।

1763. Read the passage and answer the question. Capsaicin, the substance that makes chillies taste hot, causes a burning feeling in mammals but has no such effect on birds. As a result, mammals, whose teeth crush the seeds, tend to avoid chillies, while birds eat them and later drop the undamaged seeds far away. Some scientists believe this is why chilli plants developed their heat in the first place. According to the theory described, how does the heat of chillies help the plant?

      कIt discourages animals that would destroy the seeds. खIt kills insects that eat the leaves. गIt makes the fruit ripen faster. घIt attracts mammals that spread the seeds.
      💬 टिप्पणी / गल्ती रिपोर्ट (०)

      छलफल / प्रश्न उत्तरमा गल्ती छ

      पठाउनुहोस्

      टिप्पणी जाँचपछि मात्र देखिन्छ।

1764. Read the passage and answer the question. Vanilla comes from the pods of an orchid that is native to Mexico, where it is pollinated by local bees. When the plant was taken to other tropical countries in the nineteenth century, it grew well but produced no pods. The problem was solved in 1841, when Edmond Albius, a twelve-year-old enslaved boy on the island of Réunion, invented a quick way to pollinate the flowers by hand. Growers still use his method today. What was Edmond Albius's contribution?

      कHe brought vanilla from Mexico to Réunion. खHe found a way to pollinate vanilla flowers by hand. गHe discovered that bees pollinate vanilla. घHe was the first to grow vanilla in Mexico.
      💬 टिप्पणी / गल्ती रिपोर्ट (०)

      छलफल / प्रश्न उत्तरमा गल्ती छ

      पठाउनुहोस्

      टिप्पणी जाँचपछि मात्र देखिन्छ।

1765. Read the passage and answer the question. Vanilla comes from the pods of an orchid that is native to Mexico, where it is pollinated by local bees. When the plant was taken to other tropical countries in the nineteenth century, it grew well but produced no pods. The problem was solved in 1841, when Edmond Albius, a twelve-year-old enslaved boy on the island of Réunion, invented a quick way to pollinate the flowers by hand. Growers still use his method today. Why did vanilla plants outside Mexico produce no pods at first?

      कThe climate was too cold. खThe insects that pollinated them in Mexico were not there. गThe plants were diseased. घFarmers did not know how to harvest them.
      💬 टिप्पणी / गल्ती रिपोर्ट (०)

      छलफल / प्रश्न उत्तरमा गल्ती छ

      पठाउनुहोस्

      टिप्पणी जाँचपछि मात्र देखिन्छ।

1766. Read the passage and answer the question. Saffron is made from the three thin red stigmas found in each flower of the saffron crocus. They must be picked by hand, and about 150,000 flowers are needed to produce a single kilogram of the dried spice. This explains why saffron is often described as the most expensive spice in the world. According to the passage, why is saffron so expensive?

      कThe crocus grows in only one country. खIt must be stored at very low temperatures. गProducing it requires huge numbers of flowers picked by hand. घIts flowers bloom only once every few years.
      💬 टिप्पणी / गल्ती रिपोर्ट (०)

      छलफल / प्रश्न उत्तरमा गल्ती छ

      पठाउनुहोस्

      टिप्पणी जाँचपछि मात्र देखिन्छ।

1767. Read the passage and answer the question. Saffron is made from the three thin red stigmas found in each flower of the saffron crocus. They must be picked by hand, and about 150,000 flowers are needed to produce a single kilogram of the dried spice. This explains why saffron is often described as the most expensive spice in the world. Based on the passage, about how many stigmas are needed to make one kilogram of dried saffron?

      क150,000 ख50,000 ग300,000 घ450,000
      💬 टिप्पणी / गल्ती रिपोर्ट (०)

      छलफल / प्रश्न उत्तरमा गल्ती छ

      पठाउनुहोस्

      टिप्पणी जाँचपछि मात्र देखिन्छ।

1768. Read the passage and answer the question. Green tea and black tea come from the same plant, Camellia sinensis. The difference lies in how the leaves are processed. To make black tea, the leaves are rolled and left in the air so that they oxidise and turn dark before they are dried. To make green tea, the leaves are heated soon after picking, which stops oxidation and keeps them green. What is the main difference between green tea and black tea, according to the passage?

      कWhether the leaves are allowed to oxidise खThe type of plant they come from गThe country where they are grown घThe age of the leaves when picked
      💬 टिप्पणी / गल्ती रिपोर्ट (०)

      छलफल / प्रश्न उत्तरमा गल्ती छ

      पठाउनुहोस्

      टिप्पणी जाँचपछि मात्र देखिन्छ।

1769. Read the passage and answer the question. Cows are ruminants, which means their stomach has four compartments. A cow swallows grass quickly with little chewing. Later, it brings the partly digested food, called cud, back up into its mouth and chews it again, sometimes for several hours a day. This allows it to obtain nutrients from tough plant material that many other animals cannot digest. Why does a cow chew its cud?

      कTo digest tough plant material more fully खTo clean its teeth गTo store food for winter घTo cool its stomach
      💬 टिप्पणी / गल्ती रिपोर्ट (०)

      छलफल / प्रश्न उत्तरमा गल्ती छ

      पठाउनुहोस्

      टिप्पणी जाँचपछि मात्र देखिन्छ।

1770. Read the passage and answer the question. Despite its name, the electric eel is not a true eel; it is more closely related to catfish. It lives in rivers in South America and can produce shocks of several hundred volts, which it uses both to stun the fish it eats and to defend itself. It also gives off much weaker electric signals that help it find its way in muddy water. What surprising fact about the electric eel does the passage give?

      कIt lives in the sea. खIt is not really an eel. गIt eats only plants. घIts shocks are too weak to feel.
      💬 टिप्पणी / गल्ती रिपोर्ट (०)

      छलफल / प्रश्न उत्तरमा गल्ती छ

      पठाउनुहोस्

      टिप्पणी जाँचपछि मात्र देखिन्छ।