Very Easy & Interesting Science Quiz

The correct answer is "national aeronautics and space administration." NASA stands for National Aeronautics and Space Administration, which is a United States government agency responsible for the nation's civilian space program and for aeronautics and aerospace research.

Cryptogams refer to plants that do not produce flowers. Flowers are the reproductive structures of angiosperms, which are a type of plant that produces seeds enclosed in a fruit. Therefore, a plant without flowers would be classified as a cryptogam. This term encompasses a variety of plants such as ferns, mosses, and algae, which reproduce through spores rather than flowers and seeds.

National Science Day is celebrated on 28th February. This day is dedicated to commemorating the discovery of the Raman Effect by Indian physicist Sir C.V. Raman in 1928. The Raman Effect refers to the scattering of light by molecules, which led to Raman's groundbreaking research in the field of optics and spectroscopy. National Science Day aims to promote scientific temper and create awareness about the importance of science and its application in our daily lives. It is celebrated with various activities, lectures, exhibitions, and science fairs across the country.

The correct answer is CH4+CO2+H2s. Biogas is primarily composed of methane (CH4), carbon dioxide (CO2), and hydrogen sulfide (H2s). Methane is the main component and is responsible for the flammable properties of biogas. Carbon dioxide is a byproduct of the anaerobic digestion process, and hydrogen sulfide is a trace gas that gives biogas its characteristic odor.

Germany is the correct answer because it is known for its high potato production. The country has favorable climatic conditions and advanced agricultural practices that contribute to the successful cultivation of potatoes. Germany also has a long history of potato cultivation and is renowned for its wide variety of potato dishes.