Tag: evs - i

Questions Related to evs - i

Earliest hot atmosphere of earth contained :

  1. Molecules of hydrogen, Carbon and NItrogen

  2. Atoms of Hydrogen, Carbon, Oxygen and Nitrogen

  3. Atoms of Hydrogen, Sulphur and Carbon

  4. Molecules of Hydrogen, Methane and Ammonia


Correct Option: B

Primary atmosphere contained :

  1. $ CO _2, NH _3$ and $ H _2 O $

  2. $ CH _4 , NH _3, H _2 $ and $ H _2 O $

  3. $ CO _2, N _2 H _2 $ and $ H _2 O $

  4. $ CH _4 , CO _2 , N _2 , O _2 $ and $ H _2 O $


Correct Option: B

In mesosphere, the temperature :

  1. Rises from $-2^o $ to $ 15^o C $

  2. Rises from $-2^o $ to $ 92^o C $

  3. Decreases from $-2^o $ to $ -15^o C $

  4. Decreases from $-2^o $ to $ -92^o C $


Correct Option: D

Primordial soup is the name of :

  1. Rainy season ponds

  2. Hot solute rich early sea

  3. Hot molten surface of early earth

  4. Lava rich part of early earth


Correct Option: B

Atmospheric layer protective to living beings from harmful rays is :

  1. Mesosophere

  2. Ozonosphere

  3. Thermosphere

  4. Both B and C


Correct Option: D

Microspheres resemble living beings in their ability to :

  1. Assimilate chemicals

  2. Grow

  3. Divide

  4. All the above


Correct Option: D

Methane of primary atmosphere disappeared in secondary atmosphere because of :

  1. Consumption in formation of carbohydrates

  2. Consumption in formation of various types of organic compounds

  3. Escaping in space

  4. Oxidation to $CO _2$


Correct Option: D

Asthenosphere lies at a depth of

  1. 70 km

  2. 70 - 100 km

  3. 70 - 150 km

  4. 70 - 280 km.


Correct Option: D

Asthenosphere is

  1. Part of mantle

  2. Part of crust

  3. Part of core

  4. Discontinuity between crust and mantle.


Correct Option: A