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3 questions
A person is sitting in a travelling train and facing the
engine. He tosses up a coin and the coin falls behind
him. It can be concluded that the train is :
Moving forward and gaining speed.
Moving forward and losing speed
Moving forward with uniform speed.
Moving backward with uniform
Ms. Shukla, a science teacher gave different mixtures to
four groups of students to separate their components.
Which group was not following the correct method?
Group 1 was separating a mixture of ethyl alcohol
and water by using separating funnel
Group 3 was separating a mixture of iron pins and
sand by using a magnet.
Group 2 was separating a mixture of ammonium
chloride and sodium chloride using sublimation
Group 4 was separating mud particles suspended
in water using sedimentation and decantation
Select the incorrect match of disease and its vector/
carrier.
Cholera - Housefly
Sleeping sickness - Tsetse fly
Typhus fever - Body louse
Chikungunya - Sandfly
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