Questions

Term ecosystem was coined by

In each of the questions below are given three statements followed by three conclusions numbered I, II, and III. You have to take the given statements to be true even if they seem to be at variance with commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follow(s) from the given statements disregarding commonly known facts.
Statements:
Some tables are chairs.
All chairs are benches.
All benches are desks.
Conclusions:
I. Some desks are tables.
II. Some benches are tables.
III. Some desks are chairs.

∆DEF is right angled at E. If m∠F = 45°, then find the value of (cosecD - 1/√3).

Charles Darwin, the famous evolutionist, proposed his theory in which one of his books ?

In Microsoft Word, _____ is a position we set for placing and aligning text on a page.

_________ is a natural electrical phenomenon characterized by the appearance of streamers of reddish or greenish light in the sky, especially near the northern or southern magnetic pole.

Calculate the frequency (in Hz) of a sound wave of wavelength 5 m travelling with a speed of 360 m/s.

Which of the following planets has the highest revolutionary motion?