Process of separation of different constituents from petroleum is called refining. Refining is a method of removing impurities in order to... View Article
Water helps in formation of soil in the following ways: Water wears off the rocks over a long period of time. Small rocks in the flowing water... View Article
a) Spongilla Spongilla is classified under phylum Porifera. They belong to the class Demospongiae, characterized by the skeleton of spongin... View Article
Waxy substances on epidermis called cuticle. The cuticle covering the epidermis protects the plant body against the invasion of parasites and... View Article
In human beings, body parts of an adult are present from the time of birth itself. Whereas, in metamorphosis, the parts of the adult are... View Article
Kerosene is a petroleum product. It is used as fuel for lamps, stoves, and Jet aircrafts. Kerosene is one of the fractions of crude oil composed... View Article
Monomer Polymers are a class of synthetic substances composed of multiples of simpler units called monomers. Polymers are chains with an... View Article
Species Species is defined as a group of organisms that consist of similar individuals capable of interbreeding or exchanging genes among... View Article
The various traditional ways of purifying water to make it fit for drinking are as follows: This is a physical method of removing impurities. A... View Article
a) True A biosphere reserve may contain a national park or wild life sanctuary, or both. A wildlife sanctuary is an area of nature owned by the... View Article
The gastric glands are tube-like, branched structures present at the inner lining of the stomach. They are the basic secretory unit of the... View Article
b) Sunflower Sunflower oil is produced from the seeds of sunflower. Sunflower seeds are rich in protein and yield a high quality vegetable oil... View Article
Carbon dioxide is considered as a pollutant because carbon dioxide is a green house gas and its excessive amount in the atmosphere results in... View Article
Any deviation from the normal functioning or state of incomplete physical or mental well-being is called disease. Disease is a condition that... View Article
Antibiotics commonly block biochemical pathways important for the growth of Bacteria. Antibiotics commonly block biochemical pathways important... View Article
Release of sex hormones is under the control of a hormone secreted from the Pituitary gland. The pituitary gland is about the size of a pea and... View Article
The lowest temperature at which a substance catches fire is called its ignition temperature. Ignition temperature is an important property of any... View Article
