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1 Which produce the majority of the oxygen on Earth?
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Ocean
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Street
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Home
Correct!Wrong! -
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2 Which has the ability to work against gravity?
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Helium
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Lithium
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Osmium
Correct!Wrong! -
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3 The water can exist in state at once?
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2
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3
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4
Correct!Wrong! -
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4 A cockroach can live for up to ------ without its head?
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One week
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Two weeks
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Three weeks
Correct!Wrong! -
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5 Severe deficiency of vitamin D results in?
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Scurvy
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Rickets
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Night blindness
Correct!Wrong! -
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6 The deficiency of water is?
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1g/cm3
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1.5g/cm3
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2g/cm3
Correct!Wrong! -
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7 What play an important role in determining the hottest temperature the human body can tolerate?
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Altitude
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Humidity
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Pollution
Correct!Wrong! -
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8 Which of the following substance is not a conductor?
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Aluminum
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Silicone
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Graphite
Correct!Wrong! -
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9 The position of an element in the periodic table is determined by its ---- number?
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Proton
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Neutron
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Atomic
Correct!Wrong! -
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10 What types of rocks are formed when continental plates collide with each other?
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Igneous rocks
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Sedimentary rocks
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Metamorphic rocks
Correct!Wrong! -
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