POLLUTION Definition: Pollution is defined as the release of toxic or harmful substances into the environment by their natural forces or man and other animals to an extent that causes biological damage to man and his resources. In other words, pollution is the release of harmful substances into the environment, i.e., water, air and land […]
ENVIRONMENTAL POLLUTION Read More »
Nitrogen Cycle Nitrogen is an abundant element in the atmosphere. It is an essential constituent of proteins, a group of substances found in all living cells. About 78% of air is composed of gaseous nitrogen. Plants cannot incorporate nitrogen gas into organic compound and therefore depend on various types of bacteria to make nitrogen available
Meaning Nutrient cycling refers to the movement of certain nutrients like nitrogen, carbon, water, oxygen and other elements from the environment into various organisms and back into the environment. The path along which the atoms or elements pass is called a cycle. The popular well known nutrients cycles are nitrogen cycle, carbon cycle, water cycle
NUTRIENT CYCLING IN NATURE Read More »
Introduction Food production depends on the following Role of government in agricultural production Environmental factors required for food production 3Ways of improving crop production Role of Government in Agricultural production The role of government in agricultural production include Provision of agro-chemicals Provision of financial assistance. Provision of high quality planting materials Provision of tractors
FOOD PRODUCTION AND STORAGE Read More »
TERRESTRIAL HABITATS Organisms of the land are called terrestrial organisms. They include plants and animals that are found living on the ground and under the ground. Basically, terrestrial habitat is subdivided into four main parts, namely; marsh forest grassland/ savanna arid land/ desert EVALUATION What are terrestrial organisms? List four types of terrestrial habitats
TERRESTRIAL HABITATS Read More »
HABITAT (AQUATIC HABITAT) Habitat is a place where organisms (plants, microorganisms and animals) are naturally found e. g. the habitat of tadpole is the bottom of fresh water ponds or streams. There are three main types of habitats, namely; aquatic habitat (in or around water), terrestrial habitat (in or on land) and arboreal habitat (in