Animals, during respiration, take in oxygen and release carbon dioxide gas. Plants, on the other hand, utilise this carbon dioxide gas in the... View Article
(a) Sirius Sirius is a star, not a planet. The star Sirius is the brightest star in the sky. It is commonly known as the Dog Star.This star is... View Article
(a) By eating rice alone, we can fulfil the nutritional requirements of our body. False Rice is a good source of carbohydrates but they supply... View Article
Melting of ice is a reversible change. Explanation A change which cannot be reversed to form the original substance (or substances) is called an... View Article
The distance between Radha’s home and her school is 3250 m. We know that 1 km = 1000 m Or 1000 m = 1 km Or 1m = 1/1000 Km Thus, 3250 m =... View Article
In grasslands, there are very few trees to hide for animals from predators like lion and tiger. In small grasses, predators can easily locate... View Article
Husk or dirt particles can be separated by winnowing method. It is used to separate the heavier and lighter components of a mixture by wind or by... View Article
The bus is an example of a non-living thing that shows two characteristics of living things. Like living things, it can move from one place to... View Article
False. Water also gets evaporated from the upper layer of the soil. Evaporation happens when a liquid substance becomes a gas. When water is... View Article
The fishes have lungs for respiration. (False) Respiration in fish takes place with the help of gills. Most fish possess gills on either side... View Article
Given fibres are classified as follows: Wool, cotton, jute, silk. Natural fibres are the fibres that are obtained from plants, animals or... View Article
Roots absorb water and minerals from the soil. Most water absorption happens in the root hairs. The root hairs are long which allows them to... View Article
False. Rain is not the ultimate source of water. The ultimate source of water is the water bodies which are present on earth which includes... View Article
An electric bell has an electromagnet - True An electric bell consists of one or more electromagnets , made of a coil of insulated wire around... View Article
False The mixture of sugar and salt solution can be separated by evaporation (the process of turning from a liquid into vapour) and if the... View Article
Excessive quantities of chemicals (fertilizers, weedicides,insecticides, pesticides etc.) get washed away from the fields entering into water... View Article
The time taken to complete one oscillation is known as the time period of the pendulum. Time Period = (Total time is taken)/ (Number of... View Article
No, electromagnets attract only magnetic substances. Plastic bags are non-magnetic in nature and are not attracted by an electromagnet. Hence, an... View Article
