Animals belonging to the phylum............. are fundamentally characterized by the presence of a notochord, a dorsal hollow nerve cord and paired pharyngeal gill slits.
annelida
chordata
arthropoda
platyhelminthes
A ball rolling along the ground gradually slows down and finally comes to rest is due to.............
friction
magnetic force
electrostatic force
muscular force
The angle between the ........... and the incident ray is called the angle of incidence.
surface
normal
tangent
reflected ray
.............. is made by mixing iron with carbon and metals like chromium, nickel and manganese.
Ship
Stainless Steel
Rust
Ozone
........... is any attribute of the organism (morphological, physiological, behavioural) that enables the organism to survive and reproduce in its habitat.
Adaptation
Migration
Conformation
Regulation
............ scheme by the Central Government aims at providing free health checkups for pregnant woman for the first 6 months pregnancy.
Gram Uday Se Bharat Uday Abhiyan
Pradhan Mantri Ujjwala Yojana
Pradhan Mantri Surakshit Matritva Abhiyan
Vidyanjali Yojana
Who invented the thermos flask?
Ray Tomlinson
Tim Berners-Lee
William Cullen
James Dewar
D.
James Dewar