What are Different Types of WasteWaste are useless left over or discarded materials. They can be gaseous, liquid or solid.Biodegradable Wastes : They are wastes which are broken down and disposed of naturally by saprophytes or decomposers.Biodegradable …

What are the Main Causes of DiseaseSources (causes) of Disease :Generally, factors affecting health may be divided into following groups – Intrinsic factors andExtrinsic factors1. Intrinsic or Internal Factors : The disease causing factors which exist w…

Describe Double Circulation in Human BeingsDouble circulation has two components, pulmonary circulation and systemic circulation. Pulmonary Circulation : It is movement of blood from heart to the lungs and back. Deoxygenated blood of the body enters th…

What is the Difference between Healthy and Disease freeHealth : It is a state of being well enough to function well physically mentally & socially.Personal & Community issue both matter for health  Our social environment is an important factor i…

What are the Causes and Effects of Soil PollutionSoil PollutionSoil is one of the most valuable natural resources on Earth. When it gets polluted by various means, including careless human activities, necessary measures must be adopted to control the po…

Do Plants BreatheRespiratory system in plants In plants, food that is manufactured in the form of starch needs to be broken down to release energy. So, respiration is a vital function in plants. It is represented as Starch (Sugar) + Oxygen —► Energy + C…

What are the Characteristics of Living ThingsCharacteristics of living things The characteristics of living things are described below.Structural Organization Living things have a definite structural organization. Their bodies are made of cells, which ar…

What are the Properties of SoilProperties of soil Soil has special properties which determine different soil types. These properties areAbsorption of water in soilMoisture in the soil, andPercolation rate of water in soil.1. Absorption of Water in Soil …

Which Materials Make up the A Horizon in SoilSoil Profile Due to the physical, chemical, and biological activities that take place during soil formation, well-developed layers of soil are formed, one below the other. Typically, four distinct soil layers …

How Plants can Reproduce AsexuallyReproduction in plants The process of producing young ones from their parents is known as reproduction. Plants reproduce through asexual, vegetative, and sexual means. Asexual reproduction involves either the simple div…