Question : The lowest temperature at which a substance catches fire is called its ___________.
Option 1: melting point
Option 2: explosion point
Option 3: ignition temperature
Option 4: combustion temperature
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Correct Answer: ignition temperature
Solution : The correct option is ignition temperature.
The lowest temperature at which a substance catches fire and sustains combustion is called its ignition temperature. It varies for different materials and is crucial for understanding fire safety, as it represents the point at which spontaneous ignition occurs without an external ignition source.
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Question : The process in which metals are extracted from their ores by heating beyond the melting point is called ________.
Option 1: spinning
Option 2: smelting
Option 3: heaving
Option 4: extracting
Question : The day-to-day condition of the atmosphere at a place concerning the temperature, humidity, rainfall, wind speed etc. is called _____ at that place.
Option 1: climate
Option 2: weather
Option 3: environment
Option 4: ecology
Question : What is the jelly-like substance between the nucleus and the cell membrane called?
Option 1: Plasma
Option 2: Cell wall
Option 3: Plasma membrane
Option 4: Cytoplasm
Question : Which of the following is a biotic component of ecology?
Option 1: Sunlight
Option 2: Carbonic substance
Option 3: Humidity
Option 4: Fungi
Question : What is the total stock of money in circulation among the public at a particular point in time called?
Option 1: Money order
Option 2: Money supply
Option 3: Short money
Option 4: Money laundering
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