A) white |
B) black |
C) deep blue |
D) crimson |
B) black |
1). In upper space, astronauts
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2). The sun appears deep orange-red before it sets because
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3). Soap bubbles show multiple colours when viewed in white light because of
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4). The technique of recording and reproducing three-dimensional images of objects is known as
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5). When a wave goes from one place to another, it transports
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6). The pitch (or shrillness) of a sound is determined by its
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7). A woman's voice is shriller than a man's due to
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8). The loudness of a sound wave is determined by its
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9). Sound travels at maximum speed in
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10). Sounds cannot travel through
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