Tag: economics

Questions Related to economics

Organic waste i.e. food waste, manure, leaves, grass trimmings, paper, wood, feathers, crop residue, etc., are dumped in large pits called _________.

  1. Landfill Pit

  2. Compost Pit

  3. Drainage Pit

  4. Segregation Pit


Correct Option: B

Which type of waste must be disposed of with utmost care?

  1. Toxic

  2. Soiled

  3. Organic

  4. Options A and B


Correct Option: D

Hospital waste such as discarded syringe needles, bandages, swabs, plasters, cloth soiled with blood and other body fluids are termed as ___________.

  1. Organic waste

  2. Recyclable waste

  3. Soiled

  4. Toxic waste


Correct Option: C

Drainage can be broadly split into _________.

  1. Foul water

  2. Surface water

  3. Both A and B

  4. None of these


Correct Option: C

__________ is a process in which various organisms including bacteria and fungi break down organic matter into simpler substances under controlled aerobic conditions.

  1. Segregation

  2. Dumping

  3. Composting

  4. Drainage


Correct Option: C
Explanation:

Organic waste is broken down by microbes (bacteria) into simpler substances. It is a multi-step process which is closely monitored with measured inputs of water, carbon and nitrogen rich compounds.

Nonbiodegradable waste can be further segregated into ________________.

  1. Recyclable waste

  2. Toxic waste

  3. Soiled

  4. All of these


Correct Option: D

What are the advantages of composting?

  1. It reduces need for landfill space

  2. It converts organic matter into stable compost that is odour and pathogen free and can be used as manure

  3. It reduces the need for fertilizers and pesticides

  4. All of these


Correct Option: D

In ________ process, solid wastes are dumped in a low lying area and as a result of bacterial action, refuse decreases considerably in volume and are converted gradually into humus.

  1. Segregation

  2. Dumping

  3. Composting

  4. Drainage


Correct Option: B

The composting process is carried out by __________.

  1. Psychrophiles - low-temperature microbes

  2. Mesophiles - medium temperature microbes

  3. Thermophiles - high-temperature microbes

  4. All of these


Correct Option: D
Explanation:

The three types of bacteria work at different temperatures to decompose the organic matter. Psychrophiles work at lowest temperature, around 55-70 degrees Fahrenheit to break down the organic matter. They give off small heat in the process which is sufficient enough for Mesophilic bacteria to begin composting. They prefer temperatures from 70-100 degrees Fahrenheit and give off heat while decomposing. They die when the temperature goes beyond 100 degrees and this is when thermophiles (heat loving bacteria) begin working.

Which of the following is a non farm activity?

  1. Multiple cropping

  2. Crop rotation

  3. Dairy farming

  4. Modern farming


Correct Option: C
Explanation:
  1. Dairy farming is a non-farm activity. Dairy farming is a class of enterprise, for long term production of milk, usually not only from dairy cows, but also from goats, sheep and camels, which may either be processed on-site or transported to a dairy factory for processing and eventual retail sale.
    2. Some of the main non-farming activities are:
         (i) Diary 
    farming; 
         (ii) Small scale cottage industry; 
         (iii) Shop-keeping; 
         (iv) Transport; 
          (v) PCO.