Q. No.The following two plants exhibit :
1. Analogous organs
2. Vestigial organs
3. Rudimentary organs
4. Homologous organs
In the apparatus of Urey and Miller experiment the gases [G] contained in the flask are :
1. Methane, Carbon dioxide, Ammonia and Water vapour
2. Methane, Hydrogen cyanide, Ammonia and Water vapour
3. Methane, Ammonia, Hydrogen and Water vapour
4. Carbon dioxide, Oxygen, hydrogen and ammonia
Why is it said that looking at stars on a clear night sky means looking back in time?
A. What we are seeing at that time is actually what started its journey millions of years back
B. What we are seeing at that time is actually what started its journey trillions of days back
C. What we are seeing at that time is actually what started its journey thousands of days back
D. What we are seeing at that time is actually what started its journey thousands of kilometres away
Which of the following statements are not true?
(1) The origin of life is considered as a unique event in the history of earth
(2) Earth is just a speck.
(3) Universe is almost 20 million years old
(4) Galaxies contain stars and clouds of gas and dust
Big Bang theory attempts to explain
(1) The origin of universe
(2) The origin of Earth
(3) The origin of life
(4) The origin of environment
Which of the following is not true about Big Bang theory?
(1) A singular huge explosion
(2) Universe expanded and temperature came down
(3) Hydrogen and Helium formed alongwith this expansion
(4) The gases condensed under gravitation and formed the galaxies of the present day universe.
Which of the following is true regarding early earth?
1. Earth was supposed to have been formed about 4.5 billion years back.
2. The atmosphere of early earth was full of water vapour.
3. The surface of earth was covered by water vapour, methane and carbondioxide, the three compounds, formed from molten mass.
4. The UV rays from the sun broke up water into hydrogen and oxygen and lighter oxygen escaped.
…….combined with ….. and….. to form water, CO2 and others.
(1) Oxygen, ammonia and Methane
(2) Hydrogen, ammonia and Methane
(3) Hydrogen, Methane and ammonia
(4) Oxygen, Methane and hydrogen
Which of the following theory is dismissed by Louis Pasteur's Experiment?
(1) Theory of panspermia
(2) Theory of spontaneous generation
(3) Theory of special creation
(4) Catastrophic theory
Oparin of…… and Haldane of ….. proposed that the first form of life could have come from pre existing …………
(1) Russia, England, non-living inorganic molecules
(2) England, Russia, living organic matter
(3) Russia, England, non-living organic molecules
(4) England, Russia, life
© 2024 GoodEd Technologies Pvt. Ltd.