List of top Science Questions

The tiger is a consumer of:
What is glycolysis?
Define nutrition.
What is hormone?
What is the role of petals in flowers?
Define pollination. Write the effect of rainfall on pollination.
DNA is the basis of heredity. How?
Write about five important sexually transmitted diseases, their causal pathogens, and symptoms.
What is environment?
What is sinoauricular node?
What is an ore?
What is corrosion? Explain with example.
Write the steps involved in the extraction of metals from ores.
Why does the aqueous solution of an acid conduct electricity?
What is ozone? Explain its importance.
Briefly describe the benefits of rainwater harvesting.
Why is it necessary to balance a chemical equation?
What is covalent bond? Give two examples of it.
How does the eye control the amount of light entering into it?
Explain scattering of light.
What is a non-renewable source of energy? Give two examples of it.
Mention two reactions that displace chlorine from bleaching powder by giving equations.
Which quantity remains constant in Ohm's law, when temperature is constant? Explain.
Write any two properties of magnetic field lines.
How is the concentration of OH\(^-\) ion affected on adding a base in excess to sodium hydroxide solution?