Water pollution can be defined as the contamination of water bodies. Water pollution is caused when water bodies such as rivers, lakes, oceans,... View Article
a) Tube feet The organisms belonging to the phylum Echinodermata are exclusively marine.The tube feet are small tube-like projections on the... View Article
The temperature of a substance remains constant at its melting and boiling points until all the substance melts or boils because, the heat... View Article
(c) While brushing your teeth, leaving the tap running may waste several litres of water. There are several ways to conserve water. Here are... View Article
The ‘unused kneaded flour’, if left in warm conditions, gets infected by microbes which cause fermentation and spoils the flour. But the pooris... View Article
Malaria Malaria Plasmodium, that causes malaria, the pathogen completes its life cycle in mosquito and humans. Malaria is not caused by a virus... View Article
Answer: a) Malaria Malaria is a mosquito-borne infectious disease caused by various species of parasitic protozoan microorganisms Plasmodium... View Article
CFCs stands for Chlorofluorocarbons Chlorofluorocarbons are the gases used in electric appliances like air conditioners and refrigerators. CFCs... View Article
During the process of fertilization, the sperm fuses with the egg cell. The content of the sperm cell is transferred into the egg, to form the... View Article
1. Chromoplast - Flowers and Fruits- (impart red, yellow and orange colour to the plant parts, helps in pollination and dispersal of seeds by... View Article
(b) chromosomes A thread like structures found inside nucleus which contain genes on it is called as a chromosome. Each chromosome is made up of... View Article
Introduction of a new species may affect the existence of local species due to competition.The members of the species may compete for food and... View Article
True, air contains oxygen and oxygen is a supporter of combustion. Air or oxygen which helps in burning is called supporter of combustion and the... View Article
Decantation It is the method used to separate a mixture of petroleum and water. Decantation is the process of separation of liquid from solid and... View Article
(d) PET PET(Polyethylene Terephthalate) is used for making kitchen containers because It is strong, durable, light-weight, non-reactive.It is a... View Article
The phenomenon of water stagnation happens when the water can't reach the surface of the soil because its empty spaces are already occupied.... View Article
Sunflower oil is produced from the seeds of sunflower. Sunflower seeds are rich in protein and yield a high quality vegetable oil used as cooking... View Article
(d) Influenza The flu, also called Influenza, is a viral disease that affects the nose, throat and the lungs. It is quite contagious and... View Article
