Which one of the following types of waves are used in a night vision apparatus?
A ________________ is known by different names in different parts of the world. It is called a ‘hurricane’ in North America.
The major ingredient of leather is
Leather is a durable and flexible material created by tanning animal rawhide and skins. The major ingredient of leather is Collagen.
The process of electric discharge between clouds and the earth or between different clouds causes _____________.
"Personology" refers to _____.
The Government of India has approved year 2018 as National year of which nutrient rich crop to boost its production?
Living things constitute the biotic component of the ___________________.
Thunder Cloud happens in which layer of the atmosphere?
The _________ keeps the average temperature of the Earth fairly steady.
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