With reference to agricultural soils, consider the following statements:
1. A high content of organic matter in soil drastically reduces its water holding capacity
2. Soil does not play any role in the sulphur cycle
3. Irrigation over a period of time can contribute to the salinization of some agricultural lands
Which of the statements given above is/are correct?
Statements 1 and 2 are incorrect : Organic matter increases the water holding capacity of the soil. Sulphur cycle has both terrestrial as well as gaseous parts, Sulphur being stored as sulfates in soil. Statements 3 is correct : Irrigation over a long period of time can lead to salinization because irrigated water contains dissolved salts which get left behind when water evaporates. Over time, concentrations of those salts can reach levels that make it more difficult for plants to take up water from the soil.
Which of the following term is used when your computer stops working suddenly?
Which of the following is a text file that a Web browser stores on a user’s machine?
One should click ___________ in order to move from one worksheet to another in MS-Excel workbook.
What is the purpose of the "spooler" in an operating system?
The files which are deleted from hard disk goes to
For indentation of text in MS Word which among the following option is not available?
NPTEL stands for
In a multi-user operating system, what does it allow multiple users to do simultaneously?
Microsoft word is ____ software.
Which operating systems are designed to operate on small machines with limited resources, such as PDAs?
