Questions

Potentially hazardous foods are foods that might contain food poisoning bacteria and are capable of supporting growth of these bacteria or formation of toxins to levels that are unsafe for consumers, if the foods are not stored at correct temperatures. Toxins are poisonous chemicals produced by some types of bacteria.

The food can be left at room temperature until it reaches 60 deg C because food-poisoning bacteria will not multiply at 60 deg C or above. However, do not leave food cooling at room temperature unless you are sure that the temperature of the food is still at least above 60 C.

The memory which can be retained even the power is off is called as Permanent memory or Persistent memory. Computer's hard drive is an example of permanent memory and computer's cache or RAM are examples of temporary memory.

The objects through which light cannot pass are called as Opaque objects. Some objects allow some light to pass through them and are called as Translucent objects. The objects which allow all the light to pass through them are called as Transparent objects.

Here in the given options Book is an example of opaque object as it does not allow light to pass through it. Water is transparent object and notebook paper and sun glasses are examples of translucent objects.

TON is the word which is the unit of weight. In forward it has weight of 1000 kgs and in backwords NOT which has no weight.

Bismillah Khan was associated with Shehnai. He made the Shehnai as the classical musical instrument in his concert in All India Musical Conference, Kolkata in 1937.

Demand is said to be inelastic, when the demand for the good doesn't change much or it is negotiable when the price of the good changed.