Question
Lakes freeze in cold countries in winter, leaving the
water underneath at –Solution
Lake ice cover is seasonal and occurs where average daily temperature is below the freezing point. Once formed the lake ice thickens over the course of the winter as the temperature gets colder. The lakes thermal structure prepares for ice with 0 (zero) degrees Celsius water at the surface and denser 4 degrees Celsius at the bottom.
Intensity of gravitational field of earth is maximum at –
Which of the following is an example of a communicable disease?
Eclipses occur due to which optical phenomena?
Electrostatic precipitator is used to control —
The force which opposes the relative motion between different layers of liquid or gases is called –
What is the chemical symbol for Gold?
Which food group is rich in dietary fiber?
A cylindrical metal wire is reformed so that its length decreases by 20% with no change of volume. Its
resistance decreases by:
Which part of the human brain controls voluntary actions?
_________ is a technique where the plants are grown with their roots suspended in the air.
Relevant for Exams:
