Fossil fuels are ____________, ____________, and ____________ .
Fossil fuels are Coal, Petroleum and Natural Gas. Coal and Petroleum Coal and petroleum are formed as a result of... View Article
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Why should we save paper?
Paper is an important thing that we use in our daily life. Papers are manufactured from the tress and per... View Article
A fibre similar to wool is ______.
A fibre similar to wool is acrylic. Acrylic fabric is made with plastic threads. The plastic threads are made of... View Article
Justify “Dust is a pollutant”?
Dust is a pollutant because (i) Dust consists of suspended particles. Inhalation of dust causes lots of discomfort including allergic... View Article
Fungi show___mode of nutrition.
Saprophytic nutrition Explanation Nutrition is the mechanism by which food is taken in and converted into energy and other essential... View Article
Chemical nature of chitin is ___.
Carbohydrates Explanation Chitin is a long polymer of N-acetylglucosamine which is a glucose derivative. The units of N-acetyl-D-glucosamine (2-(acetylamino-2- deoxy-D-glucose))... View Article
Wood, paper, CNG are __________ substances.
Wood, paper, CNG are combustible substances. Those substances which can burn are called combustible substances. For Example: Cloth, straw, cooking... View Article
______are known to have pseudocoelom.
Nematodes Explanation Nematodes possess a cavity-like structure but not a true cavity or coelom. It is called as pseudocolor. Their... View Article
Petroleum, ________ and ________ are fossil fuels.
(d) Petroleum, Coal and natural gas are fossil fuels. Explanation Decomposing plants and other organisms, buried beneath layers of sediment... View Article
A liquid fuel, used in homes is__________ .
A liquid fuel, used in homes is Liquefied Petroleum Gas(LPG). Explanation The primary components of liquefied petroleum gas (LPG) are... View Article
Funaria is a moss. (True or False)
True Explanation Funaria is a genus of approximately 200 species of Moss. Among them funaria hygrometrica is the most common... View Article
Many skin diseases are caused by______.
Fungi Explanation A fungal infection, also called mycosis, is a skin disease caused by a fungus. A fungal skin infection... View Article
Cell wall of fungi is made up of ___.
Chitin Explanation Fungi are saprophytes in nature. They tend to live on dead organisms. They do not possess chlorophyll. Their... View Article
Write two important uses of coke.
Coke is a high-carbon product obtained by the destructive distillation of coal. Uses of coke The most common use of... View Article
Fertile soil has lots of humus. Why?
Fertile soil has lots of humus because it contains microorganisms that decompose dead organic matter present in soil and help... View Article
Pneumonia is an example of ______ disease.
Communicable. Explanation Pneumonia is a communicable disease, which means it can be spread from one person to another and is... View Article
Prokaryotes are grouped in Kingdom ______.
Monera Explanation Kingdom Monera belongs to the prokaryote family. The organisms belonging to this kingdom do not contain a true... View Article
Why step farming is common in hills?
Step farming or terrace farming is common in hills to check soil erosion through water current on the slopes. It... View Article
Describe the alimentary canal of man.
The alimentary canal is mainly referred to as the pathway by which food enters our body and moves out through... View Article
Why do only male gametes have a tail?
Male gametes or sperms are motile. The tail helps the sperm to swim through the reproductive tract of the female... View Article
