Which of the following metals is used for the manufacture of heating elements provided in electric iron?
Nichrome is the most common domestic heating element and is found in many household products. Commonly, items such as toasters, hair dryers and heaters use nichrome coils to pass electricity and give off heat. Nichrome is made of 80 percent nickel and 20 percent chromium, and its high melting point of 1,400 degrees Celsius.
Reclammation of acidic soils is done by the use of……………………..
Biological oxidation of elemental Sulphur is carried out by which of the following bacteria?
Which property of soil usually reflects the extent of leaching and weathering of soils?
The soils of grassland ecosystems, characterized by a thick, dark surface horizon comes under which soil order?
Which organic component, constituting approximately 10-30% in plant tissues, is often categorized as "very slowly decomposed"?
In soil, heat transfer is mainly due to
What is the term used for the study of soil in relation to higher plants?
Choose the best answer from the following options
What term is used to describe the process when the parent material is moved or transported primarily by the force of gravity?
The absolute density of soil is also referred to as ……………….which is generally 2.60-2.75 gm/cm3
What is the primary function of humus in soil?
