Electric current can pass through a sheet of thermo Col. (True or False)
False Explanation Thermocol is a bad conductor of electricity. Hence, electric current cannot pass through it. Conductors conduct electrical current... View Article
Latest Posts
Why can a pace or a footstep not be used as a standard unit of length?
Because the size of pace or footstep of different people are different, so the lengths measured by two different persons... View Article
Name two foods each rich in: (a) Fats (b) Starch (c) Dietary fiber (d) Protein
(a) Ghee, oil, butter, cheese, chocolates (b) Potatoes, rice, beans, peas (c) Carrot, cabbage, carrot, split peas (d) Milk, egg,... View Article
Explain the difference between self-pollination and cross-pollination.
Answer: Pollination is the sexual method of reproducing in all plants by the process of transferring the pollen grains from... View Article
Separation of sugar from tea can be done with filtration. (True or False)
False Explanation Since sugar is soluble in tea , it cannot be separated by filtration . Filtration works best when... View Article
The blood from the heart is transported to all parts of the body by the ____
The blood from the heart is transported to all parts of the body by the arteries. Explanation A network of... View Article
Cuscuta is an example of: (i) autotroph (ii) parasite (iii) saprotroph (iv) host
Cuscuta (Amarbel) is an example of (ii) parasite. Explanation Cuscutas are plant parasites that connect to the vasculature of their... View Article
Explain circumstances leading to acid rain. How does acid rain affect us?
The harmful gases, like sulphur dioxide and nitrogen dioxide, react with the water vapour present in the atmosphere to form... View Article
The habitats of plants and animals that live in water are called _________ habitat.
The habitats of plants and animals that live in water are called an aquatic habitat. Explanation A habitat is an... View Article
A mixture of milk and water can be separated by filtration. (True or False)
False. Explanation Filtration is used for the separation of solid components of the mixture from the liquid. But here both... View Article
The process of removing seed from cotton is called ginning. (True or False).
The process of removing seeds from cotton is called ginning – True Explanation The term ‘gin’ is an abbreviation form... View Article
Draw a diagram of the human excretory system and label the various parts.
The human excretory system includes organs that facilitate the removal of nitrogenous wastes from the body. The main excretory organs... View Article
A spore-producing organism is (i) rose (ii) bread mould (iii) potato (iv) ginger
A spore-producing plant is (ii) bread mold. Explanation Bread mould or Rhizomes is the common type of fungus. During asexual... View Article
Name two objects other than planets which are members of the solar system.
Answer: The solar system consists of eight planets, satellites, comets, and dwarf planets. Asteroids and Meteors are members of the solar... View Article
Why is transport of materials necessary in a plant or in an animal? Explain.
Transport of materials is necessary for plants or animals because due to it the nutrients and oxygen are made available... View Article
Water reaches great heights in the trees because of suction pull caused by ______
Water reaches great heights in the trees because of suction pull cause transpiration. Transpiration is the evaporation of water from... View Article
Production of new individuals from the vegetative part of parent is called_____________.
Production of new individuals from the vegetative part of parent is called vegetative propagation. Vegetative propagation Vegetative propagation occurs through... View Article
What is a virtual image? Give one situation where a virtual image is formed.
A virtual image is formed when reflected rays appear to meet. Virtual image refers to the image which forms when... View Article
What is meant by the following terms? (i) Rearing (ii) Shearing (iii) Sericulture
(i) Rearing: The process of keeping, feeding, breeding and medical care of useful animals is called rearing of animals. These... View Article
Show with the help of a sketch that plants are the ultimate source of food.
Photosynthesis is the process synthesis of food in the plants with the help of chlorophyll and carbon dioxide in the... View Article
