What is difference between acids and bases? What are indicators? Name some natural and human made indicators! What is the function of pancreas and abdomen.. Explain briefly... Why sting of ant contains formic acid? Why zinc carbonate is present in calamine solution?What does digestive juices contain? Why we only inhale oxygen? Why only oxygen is used for breakdown of food? Why oxygen supports burning? Explain with activity...What do u mean by manure and fertilisers?Difference between manure and fertilisers?What is seed drill? Tell some advantages of manure?! Draw a diagram of luner eclipse and solar eclipse ! Name some methods of irrigation?! What is threshing? What are pathogens? What is chemical method of preservation of food? What is nitrogen fixation? Explain NITROGEN CYCLE?!What are thermosetting plastics? Is plastic non reactive? What are sonours? Explain digestion process in humans! Tell some user of metals and nonmetals?!Chemical formula of calcium carbonate?! What can be the ph of acidic rain? What is ignition temperature?What is shape of a cell? Wat are pseudopodia? Explain the structure of cell with diagram! What are amino acids? Briefly describe the. function of cell! (What is cell membrane, cytoplasm etc etc) What is Gene? Is structure of the nucleus same in cells of plants and animals and bacteria? What is puberty? What are hormones? Which gland produces hormones? What's Adam's Apple? What is electrostatic force?
Answers
question.
What is difference between acids and bases?
Answer.
An acid is any chemical compound which when dissolved in water gives a solution with a hydrogen ion activity greater than in pure water. A base is an aqueous substance that can accept hydrogen ions. An acid is an substance which donates a proton. A base is any substance which accepts a proton.
question 2.
What are indicators? Name some natural and human made indicators!
Answer.
Name two natural indicators and two human made indicators. Red cabbage and Grape juice are examples of natural indicators. Litmus paper and phenolphthalein are examples of human-made or man-made indicators.
question 3
What is the function of pancreas and abdomen.. Explain briefly...
answer.
The Pancreas and Its Functions. The pancreas is an organ located in the abdomen. It plays an essential role in converting the food we eat into fuel for the body's cells. The pancreas has two main functions: an exocrine function that helps in digestion and an endocrine function that regulates blood sugar.
question 4
Why zinc carbonate is present in calamine solution?
Answer.
Calamine solution contains zinc carbonate which is basic in nature. Therefore, it is applied on the skin to neutralize the effect of formic
question
What does digestive juices contain?
Answer.
(there in the picture)
question
Why we only inhale oxygen?
Answer
Why do we inhale oxygen and exhale carbon dioxide? ... The short answer is that you inhale oxygen because you need oxygen for some biological processes. A fairly important one is the production of ATP, the energy all of our cells use. In the process, electrons are used and oxygen has a high affinity for electrons.
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