From plankton to dinosaur The Hindu Science Quiz
Predicted magnetic field structure of the Sun’s corona of the August 21, 2017 “great American solar eclipse”. Photo courtesy: CESSI/IISER
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1 / 5 |
This is the outer part of the sun’s atmosphere, at hundreds of degrees higher temperature than the surface. It is visible only during a solar eclipse. What is it called?
- Chromosphere
- Corona
- Exosphere
- Photosphere
The Sun is covered by an atmosphere of gases and this is the outermost layer. It is still unknown how it is so much hotter than the actual surface of the Sun.
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2 / 5 |
What is the science of studying pollen, spores, cysts and types of plankton in both fossil and living form called?
- Paleontology
- Palynology
- Limnology
- Ontology
Coined in 1955 by Hyde and William, it is a combination of the Greek verb paluno (to sprinkle), Greek noun pale (dust) and Greek noun logos (word or speech). Also close to Latin pollen (fine flour).
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3 / 5 |
What is this common substance that is made of polar molecules and is lighter (less dense) as a solid than it its liquid form?
- Water
- Paraffin wax
- Iron
- Coconut oil
This is the only substance among those listed that floats when it partly freezes. Also the existence of a lone pair of electrons when H2O forms, makes it a polar molecule.
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4 / 5 |
Tim Berners-Lee invented the world wide web when he was working in CERN, in 1989. When was it made available to all in an open access format?
The first ever website in the world was hosted on Tim Berners-Lee’s NeXT computer
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5 / 5 |
Modern birds can trace their origins back to a group of meat eating dinosaurs. What is this class of dinosaurs called?
- Sauropod
- Ornithopod
- Cerapod
- Theropod
Though ornithopod literally means “birdlike feet”, it is the theropod dinosaurs, which walked on two feet and were meat eaters, from which birds descended
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