The early study to chemistry. Known as alchemy, grew up in the first few centuries. A.D. at Alexandria in Egypt. The alchemists were especially concerned with discovering a way to turn base metals into gold. The learning of the earlier Greek philosophers. such as Hippocrates and influences on the Egyptian alchemists. Alchemy came under Arab influences on when the armies of Islam conquered Egypt during the seventh century. The Arabs carried its study of Western Europe when they advanced into Spaid. During the twelfth and the following, few centuries alchemy was studied widely in Europe and attract the attention of many learned meds. Although they were doomed to fail in their attempts to make old. their work paved the way for the growth of a great deal of new chemical knowledge which proved to be of considerable value to the future chemists.
During what time did Hippocrates and Aristotle lives?
Created: 4 years ago |
Updated: 10 months ago
Updated: 10 months ago
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After the early Egyptian alchemists
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During the seventh century
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During the 12 th and 13 th cent ur ies
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Before the early Egyptian alchemists
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Why can animals perceive these changes when human can not?
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Updated: 4 months ago
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Animals are smarter than human.
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Animals have certain instincts that human doesn't prossess.
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By running around the house, they can feel the vibrations.
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Human doesn't know where to look.
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An animal has sharper ear than human.
2.
Which one of the followings in not true?
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Updated: 4 months ago
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Some animals may be able to sense and approaching earthquake.
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By observing animal behavior, scientists perhaps can predict earthquakes.
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The Chinese have successfully predicted an earthquake and saved many lives the quake.
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All birds and dogs in a ten-kilometer radius of the epicenter went wild before the quake.
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The Chinese Government was able to evacuate millions of people and thus keep the death toll at a lower level in 1976.
3.
Choose the correct sentence from the followings.
Created: 3 years ago |
Updated: 4 months ago
Updated: 4 months ago
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Flying outside the window, he grabbed the papers.
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Flying out of the window, he grabbed the papers.
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Flying the window, the papers were grabbed him.
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Flying out the window, the papers grabbed by him.
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Flying out the window, the papers were grabbed by him.
4.
Which one is the correct passive form of the sentence, "Please keep off the grass."?
Created: 3 years ago |
Updated: 6 months ago
Updated: 6 months ago
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Let the grass be keep off
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Let keep off the grass
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Do not keep of the grass.
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The grass should be keep off
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You are requested to keep off the grass
5.
The right to livelihood is an facet the night to life.
Created: 3 years ago |
Updated: 7 months ago
Updated: 7 months ago
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trivial
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integral
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complicated
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ultimate
6.
We opted a reconciliation the dispute.
Created: 3 years ago |
Updated: 8 months ago
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With, for
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for, in
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on, to
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for, to
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ঠিকানা যুক্ত করা যাবে
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অটো প্রতিষ্ঠানের নাম
অটো সময়, পূর্ণমান
প্রশ্ন এডিট করা যাবে
জলছাপ দেয়া যাবে
ঠিকানা যুক্ত করা যাবে
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অটো প্রতিষ্ঠানের নাম
অটো সময়, পূর্ণমান
অটো নির্দেশনা (এডিটযোগ্য)
অটো বিষয় ও অধ্যায়
OMR সংযুক্ত করা যাবে
ফন্ট, কলাম, ডিভাইডার
প্রশ্ন/অপশন স্টাইল পরিবর্তন
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অটো নির্দেশনা (এডিটযোগ্য)
অটো বিষয় ও অধ্যায়
OMR সংযুক্ত করা যাবে
ফন্ট, কলাম, ডিভাইডার
প্রশ্ন/অপশন স্টাইল পরিবর্তন
সেট কোড, বিষয় কোড
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