Everyday Science
Battery was invented by__________?
Open this question (full page)
The horizontal rows of the periodic table are called ______?
Open this question (full page)
Sun is moving around the centre of the galaxy at a velocity of _______ km/s?
Open this question (full page)
The sun contains _______ % mass of the solar system?
Open this question (full page)
Sun is divided into ______ main layers.
Open this question (full page)
Sun revolves around the Milky Way in about _____ million years.
Open this question (full page)
Which of the following rays are more penetrating?
Open this question (full page)
Which element is used as moderator in nuclear reactor?
Open this question (full page)
Dengue fever is also called___________?
Open this question (full page)