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Assignment class 10(science)

Why is control and coordination system necessary in organism?

What is Homeostasis? 

Give example of some of the movement shown by plants?

 What are growth regulators what are the stages of growth in plants.?

State the law of reflection of light?

A concave mirror produces three times magnified real image of an object placed at 10 cm in front of it. where is the image located? 

The magnification produced by a plane mirror is 1 what does it mean?

An object is placed at a distance of 10 cm from a convex mirror of focal length 15 cm find the position and nature of the image?

Define the principal focus of a concave mirror? 

What is a neutralization reaction? 

What will be the product of the following reaction HCL NaoH? 

What is brain how does it used in chlor alkali process write the reaction involved?

 What happened to the temperature of water when few drops of concentrated sulphuric acid is added to it? 

Which compound of sodium is used for softening hard water?

What is an impulse? 

what is a synapse? 

what are nerve fibres? 

what are nodesof Ranvier? 

What are the three different types of nerves? 

Draw ray diagram showing the image formation by a convex mirror when an object is placed at infinity? 

Under what condition is an arrangement of two plane mirror incident ray and reflected ray will always be parallel to each other whatever maybe angle of incident to the same with the help of diagram? 

 A 10 mm long awl is placed vertically in front of a concave mirror A 5mm long image of the awl pin is formed at 30 cm in front of the mirror find the focal length of the mirror? 

Name the type of mirror is used in following situation headlight of mirror, rear view mirror of a vehicle , solar furnace support your answer with reason?

A convex mirror used for rear view on an automobile has a radius of curvature of 3.00m if a bus is located at 5.00 metre from this mirror find the position nature and size of the image? 

What would happen if a small amount of copper oxide is taken in a beaker and dilute HCl is added to it? 

What is the pH of pure water and that of rainwater elaborate it? 

How does plaster of paris react with water? Write down the chemical equation? 

What is dilute?why are why care must be taken while mixing concentrated nitric acid and Sulphuric acid with water?

 On which factor does the strength of an acid or a base depend? Explain?

Name the different phytohormones?

What are organs write their function? 

What are cytokines write their function? 

Name the phytohormone hormones that causes ripening of fruits?


        


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FAQs on Assignment class 10(science) All chapters

1. What are the main branches of science?
Ans. The main branches of science are physics, chemistry, biology, and earth science. Each branch focuses on different aspects of the natural world and contributes to our understanding of it.
2. What is the scientific method?
Ans. The scientific method is a systematic approach used by scientists to investigate and understand the natural world. It involves making observations, formulating a hypothesis, conducting experiments or gathering data, analyzing the results, and drawing conclusions.
3. What is the difference between a hypothesis and a theory?
Ans. A hypothesis is a proposed explanation or prediction based on limited evidence. It is a tentative answer to a specific question and requires further testing and investigation. On the other hand, a theory is a well-substantiated explanation of natural phenomena that is based on a large body of evidence. It has been extensively tested and supported by scientific research.
4. What is the importance of scientific research?
Ans. Scientific research is essential for advancing our understanding of the world around us. It helps in the development of new technologies, medicines, and solutions to various problems. It also allows us to make informed decisions based on evidence and helps solve global challenges such as climate change, disease outbreaks, and resource depletion.
5. How does science contribute to society?
Ans. Science contributes to society in numerous ways. It improves our quality of life by developing new technologies, improving healthcare, and addressing environmental issues. It also enhances our understanding of the natural world, promotes critical thinking, and fosters innovation and economic growth. Additionally, scientific discoveries often lead to advancements in various fields, including agriculture, transportation, communication, and energy production.
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