Perfect competition and monopoly - class-XI
| Description: perfect competition and monopoly | |
| Number of Questions: 24 | |
| Created by: Ankita Patil | |
| Tags: market structure and pricing economics |
BOD measures the _____.
Untreated sewage may cause _____.
Dumping has major disadvantages, however, especially in heavily polluted areas.
Newspapers, used bottles, magazines, carry bags, aluminum foils, plastics, metal, glass, old exercise books, oilcans, etc., are called _________.
Dumping is also known as landfilling.
On the basis of degradation, waste can be segregated as biodegradable and nonbiodegradable.
Toxic waste includes old medicines, paints, chemicals, bulbs, spray cans, fertilizers and pesticide containers, batteries, shoe polish, etc.
Composting helps reduce the adverse effects of excessive alkalinity, acidity, or the excessive use of chemical fertilizer.
Drainage is a removal of undesirable excess water from a region.
Kitchen waste, vegetables, fruits, flowers, leaves from the garden, and paper are called ____________.
Composting is a nature's way of recycling.
Different treatments which are given to the waste for avoiding environmental and health hazards are known as ___________.
Waste segregation is the process of dividing garbage and waste products in an effort to _________ materials.
Biodegradable waste includes inorganic waste.
Leftover foodstuff, vegetable peels, etc., is __________.
Organic waste i.e. food waste, manure, leaves, grass trimmings, paper, wood, feathers, crop residue, etc., are dumped in large pits called _________.
Which type of waste must be disposed of with utmost care?
Hospital waste such as discarded syringe needles, bandages, swabs, plasters, cloth soiled with blood and other body fluids are termed as ___________.
Drainage can be broadly split into _________.
__________ is a process in which various organisms including bacteria and fungi break down organic matter into simpler substances under controlled aerobic conditions.
Nonbiodegradable waste can be further segregated into ________________.
What are the advantages of composting?
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.
The composting process is carried out by __________.