Explanation : Bing is a web search engine launched by
Microsoft in 2009. Bing provides a variety
of search services, including web, video,
image and map search products. As of
October 2018, Bing is the third largest
search engine globally, with a query volume
of 4.58%, behind Google (77%) and Baidu
(14.45%).
The internet is the wider network that allows
computer networks around the world run by
companies, governments, universities and
other organisations to talk to one another.
Skype is software that enables the world>s
conversations. Many people and businesses
use Skype to make free video and voice
one-to-one and group calls, send instant
messages and share files with other people
on Skype.
Adobe Acrobat is a family of application
software and Web services developed by
Adobe Inc. to view, create, manipulate, print
and manage files in Portable Document
Format.
Explanation : The Montreal Protocol was signed in
1987 and entered into force in 1989.
The Montreal Protocol on Substances
that Deplete the Ozone Layer is a global
agreement to protect the Earth's ozone
layer by phasing out the chemicals that
deplete it. This phase-out plan includes
both the production and consumption of
ozone-depleting substances.
Explanation : The National Policy on Education (NPE)
1986 was adopted by Parliament in May
1986. A committee was set up under the
chairmanship of Acharya Ramamurti in
May 1990 to review NPE and to make
recommendations for its modifications.
NPE, 1986 suggested that education needed
to be managed in an atmosphere of utmost
intellectual rigour, seriousness of purpose
and, at the same time, offteedom essential
for innovation and creativity. The Policy
also envisaged that discipline be introduced
into the system with immediate effec!. The
policy put it in simple words that for the
system to work all teachers should teach
and all students should study.
Explanation : A valid argument is a deductive argument
that succeeds in providing decisive logical
support.
An argument is VALID in case of the
following hypothetical or conditional
property:
If all the premises are true, then the
conclusion cannot be false; it must be true
OR It is impossible for all the premises to
be true but the conclusion false.
This suggests that a valid argument
cannot have all true premises and a false
conclusion. So, if a valid argument does
have a false conclusion, it cannot have all
true premises. Thus, at least one premise
must be false.
Explanation : Nalanda University was one of the earliest
Universities in the world founded in the fifth
century by Gupta ruler Kumargupta. The
curricula of the university offered the study
of abstract knowledge like Philosophy,
religion, Buddhism and scientific thoughts
in astronomy, mathematics, anatomy etc. in
each classroom, there used to be hundreds
of students and they were not allowed to
go outside until the lecture was over. Only
students receiving higher education could
get admission here. The first student had to
take the exam for admission. Entrance was
possible only after passing it. There were
2,000 teachers to teach 10,000 students
here.