Question: What are the four spheres of the environment? Answer: The four spheres are: Biosphere Atmosphere Hydrosphere Lithosphere Question: List the importance of the hydrosphere? Answer: The hydrosphere is the sphere of water and is very important for the existance of life on earth. It includes all the water bodies …

Question: Define the following: Valency, Atomicity, Chemical Equation, Rusting, Galvanization, Crystallization. Answer: Definitions are as follows: Valency: The combining capacity of atoms of an element with the atoms of other elements is known as valency. Atomicity: The number of atoms that make up a molecule of an element is known …

Question: describe the climate of the zone? Answer: The climate of the frigid zone is: The frigid is cold throughout the year. In winters the temperature may drop down to – 40°C. There is continuous darkness for 6 months in winters. In summers the temperature hardly reaches 3° to 12°C. …

Question: List the different grasslands founds in different zone and mention their location? Answer:  The Prairies in North America The Steppes in Russia The Pampas in South America The veld in South America The Downs in Australia Question: Explain the climate of the temperate grasslands? Answer: The climate of the temperate …

Question: Describe the climatic conditions in the desert? Answer: The climatic conditions in the deserts are as follow: It receives scanty rainfall, ie less than 25 cm annum During the daytime the temperature is very high and reaches 50°C The nights are cooler and the temperature goes down to 10°C …

Question: Where is the equatorial forest region located? Answer: The equatorial forest region is found on both sides of the equator and falls in the torrid zone. Question: Why do you think the climate is hot and wet in this region? Answer: The climate is hot and wet in this region …

Question: Name the five main components of food. Answer: The five main components of food are: Carbohydrates Proteins Fats Vitamins Minerals Question: What is roughage? How does it help us? Answer: Roughage is the undigested part of the plant food. It helps in moving the food easily through our digestive …

Question: Name the different types of pollution? Answer: The different types of pollution are: Air Pollution Water Pollution Noise Pollution Land Pollution Question: Mention few ways to reduce air pollution? Answer: The five ways to reduce air pollution are: Walk whenever possible or use bicycle or public transport. Reduce use of …

Question: Which are the two well known Gardens in Kashmir? Describe them. Answer: The two well known gardens in Kashmir in Srinagar are: Shalimar Bagh It was built by Jahagir for Nur Jahan in 1619 CE It has 4 terraces The fourth and the best terrace was reserved by Royal ladies …

Question: What are the two important movements of the earth? Explain. Answer: The two important movements of the earth are: Question: How are seasons caused? Answer: Season are caused due to the revolution of the earth and the tilt of the earth’s axis. Question: Which are the four main seasons? …