The _______ of a Distance Versus Time graph is speed.
The slope of a distance versus time graph is speed. Distance time graph A distance-time graph shows how far an... View Article
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Potassium reacts with water to produce _______ flame
Potassium burns in water with lilac coloured flame. Potassium reacts with cold water and gives potassium hydroxide and hydrogen gas.... View Article
Sleeping sickness is caused by _________a protozoan
Sleeping sickness also called African trypanosomiasis is a disease caused by infection with the flagellate protozoan Trypanosoma brucei gambiense and Trypanosoma brucei rhodesiense. What causes... View Article
________ cultivation is found in thinly populated areas
Extensive cultivation is found in thinly populated areas. Extensive farming It is one in which more and more land is... View Article
Severe diarrhoea and vomiting can occur due to _______
Severe diarrhea and vomiting can occur due to cholera Cholera: Symptoms and causes Cholera is a bacterial disease usually spread... View Article
The thorax in the housefly carries _______ pairs of legs
The thorax in the housefly carries three pairs of legs. Where is thorax situated in a fly? Flies have a... View Article
______ and _______ are weak electrolytes
Weak acids and weak bases are weak electrolytes. Substances that dissociates into ions to a lesser extent are called weak... View Article
Atmospheric Oxygen is used by living beings for ______
Plants and animals are dependent on oxygen for respiration. Respiration is the sequence of events resulting in the exchange of oxygen and carbon... View Article
The Volume-Temperature relationship is given by ________
The Volume-Temperature relationship is given by Charle’s law State Charle’s law French physicist Jacques Charles (1746-1823) studied the effect of temperature on... View Article
Increased Solute Concentration of a Cell Causes _______
A solution will be hypertonic to a cell if its solute concentration is higher than inside the cell, and the... View Article
A vernier calipers is used for measuring lengths to an accuracy of:
A vernier caliper is used for measuring lengths to an accuracy of 10-4 m. What is the use of the... View Article
Red cabbage indicator turns _________ in basic solutions.
Red cabbage turns green on adding to basic solutions. Red cabbage contains a water-soluble pigment called anthocyanin that changes colour when it... View Article
______ on Himalayan hill slopes have created many lakes.
They are of glacial origin. How are lakes formed by glaciers in the mountains? Most of the freshwater lakes are in the Himalayan region.... View Article
The disease _______ affects the Central Nervous System
The disease polio affects the Central Nervous System How polio affects CNS? A polio infection often damages or destroys many... View Article
The change in focal length of an eye lens is caused by the action of_______
The change in the focal length of an eye lens is caused by the action of the Ciliary muscles. Ciliary muscles... View Article
What are strong electrolytes?
Substances that completely dissociates into ions are called strong electrolytes. Example: Sodium chloride, potassium chloride, lead bromide, sodium hydroxide, potassium... View Article
CaO + H2O → Ca(OH)2 is an example of a ________ reaction
CaO + H2O → Ca(OH)2 This reaction is a combination reaction as calcium oxide, and water combines to form a... View Article
Sebaceous glands produce an oily secretion called ________
Sebaceous glands produce an oily secretion called sebum. Sebum maintains body temperature, acts as an antimicrobial agent and keeps the... View Article
A symbol is a short form used for representing an _______
A symbol is a short form used for representing an element. What is the purpose of using symbols? Chemical symbols... View Article
Epithelial Tissue rests on an ________ basement membrane
Epithelial tissue rests on an extracellular basement membrane The functions of basement membrane The basement membrane is a skinny non-cellular... View Article
