Question 1: What are the components of food?Answer: Carbohydrates, proteins, fats, vitamins and minerals are the components of food.Question 2: What is nutrition?Answer: The process of utilization of food by a living organism to obtain energy is called nutrition.Question 3: Why is need of ...
Question 1: A car covers a distance of 100 km in 5 hour, calculate its speed.Answer: Given, Total distance = 100 kmTotal time taken = 5 hourWe know that, Average Speed = Distance ÷ time= 100 km ÷ 5 hour = 20 km per hourQuestion 2: A car covers 20 km in the first hour ...
excellup Class 7 Geography AirNCERT SolutionQuestion 1: Wet clothes take longer time to dry on a humid day. Why?Answer: Humidity level is very high on a humid day, i.e. plenty of water vapour is present in air. In this condition, air is unable to take up more water vapour. Due ...
Question 1: Describe the composition of the air. Answer:The air that we breathe is a mixture of many gases like oxygen, nitrogen, carbon dioxide, argon etc. The majority of the atmosphere is made up of nitrogen (78%) and oxygen (21%). The other gases that are present in small quantit...
Students can download PDFs of MP Board Class 7 Science Textbook chapterwise here. Access these PDFs and start preparing to score well in exams.
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Draw a neat labelled diagram of a vernier callipers. 9 grade science 1 Answer Available Last Activity: 2 Years ago Why are lead compounds are added to petrol? How is it harmful? 9 grade science 1 Answer Available Last Activity: 2 Years ago...
He almost single-handedly made the origin of species diversity the central question of evolutionary biology that it is today. He also pioneered the currently accepted definition of a biological species. Mayr was awarded the three prizes widely regarded as the triple crown of biology: the Bal...
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