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These questions will be asked in 1 markers set in exam paper. To help students familiarise with important topic and questions to be prepared for the upcoming CBSE Class 10 Science Examwe present here a set of important very short answer type questions. The questions may be asked in different formats like MCQs, very short answer type questions, assertion-reason type questions.

To prepare for all such questions, students only need to be good at the basic concepts and aware of all important facts and cbse class 10th ncert exemplar office explained in class 10 Science.

Questions and answers provided by Jagran Josh will help you recall and retain all the important information enabling you to answer all the objective type questions correctly. Note - While practicing with the 1 mark questions provided below, students should take care of the deleted portion of the CBSE Class 10 Science Syllabus Given below are some very important 1 mark questions for class 10 Science exam Explain why a cbse class 10th ncert exemplar office of light passing through the centre of curvature of concave minor gets reflected along the same path.

It shields our planet from the UV radiations, as these ultraviolet rays are harmful for all the living things. Therefore, any change in the size of this layer will automatically affect the life of people, plants and animals living on earth. Dark reaction of photosynthesis does not need light. Do plants undergo dark reaction at night? Dark reaction does not mean that it occurs in the absence of light i. Infact, it is the reaction occuring simultaneously with light reaction.

It a chemical cbse class 10th ncert exemplar office occurring independent of light. This reaction is completely based on enzymes. What is a solenoid? Draw the pattern of magnetic Field lines of a solenoid through which a steady current flows. Inside the solenoid indicate? Solenoid can be defined as a coil of many circular turn of insulated copper wire wrapped in cylindrical structure.

Cbse class 10th ncert exemplar office diagram shows the pattern of magnetic Field lines of a solenoid through which a steady current flows:. What is meant by acquired and inherited traits? Explain with one example. Acquired Trait: A trait or characteristic of an organism which cbse class 10th ncert exemplar office not inherited but develops in response to the environment is called an acquired trait.

Example: The cut tail of the mouse which has been brought about by some agents in its environment is an acquired trait. Inherited Trait: A trait or characteristic of an organism which is caused by a change in its genes is called an inherited trait.

Write the molecular formula of first two members of homologous series having functional group � OH. The two consecutive members of this series are:. The first occurrence of menstruation at the age of 12 in females is called menarche. Menarche is the beginning of the reproductive life of a girl. Menstruation stops when a woman reaches the age of 50 approx. At this age she loses her ability to bear child in her womb, i. This stage of permanent stoppage of menstruation is called the menopause.

Thus, reproductive life of a woman starts at menarche and ends at menopause. What kind of combustion is observed in alkanes? Why do air holes of a gas burner have to be adjusted when vessel being heated gets blackened by the flame? If the bottoms of the cooking vessels in our homes are getting blackened, it shows that the air holes of the gas stove are getting blocked and the cbse class 10th ncert exemplar office is not burning completely.

A concave mirror of focal length 15 cm can form a magnified, erect as well as inverted image of an object placed in front of it. For magnified and erect image the object is placed between pole P and focus F.

For magnified and inverted image the object is placed either at focus or anywhere between F and C. The flow of energy in the ecosystem is said to be unidirectional because the energy lost as heat from the living organisms of a food chain cannot Cbse Class 10th Ncert Book Value be reused by plants in photosynthesis. What is the effect of DNA copying, which is not perfectly accurate, on the reproduction process? The DNA copying which is not perfectly accurate in the reproduction process results in variations in.

The retina acts as a screen on which the image is formed in the eye. The retina has a large number of light-sensitive cells. When the cbse class 10th ncert exemplar office falls on the retina then these light-sensitive cells get activated and generate electrical signals. Antacid is basic in nature. Cbse class 10th ncert exemplar office neutralizes excess of acid and gives relief from pain caused by hyperacidity.

State difference between the wire used in the element of an electric heater and in a cbse class 10th ncert exemplar office wire. The wire used in the element of electric heater has a high resistivity and have a high melting point, so that even at a high temperature element do not burn while fuse wire have cbse class 10th ncert exemplar office low melting cbse class 10th ncert exemplar office and high resistivity so that it will melt if a current of large magnitude passes through the wire.

An object is placed at a distance of 12 cm in front of a concave mirror of radius of curvature 30 cm. List four characteristics of the image formed by the mirror.

Hence, knowing the focal length of mirror and the object distance, it is clear that the object is placed between the focus and pole of the mirror. So, in case of a concave mirror for an object placed between focus and pole of the mirror, the image formed will be: i Erect ii Larger in size than that of the object iii Virtual and iv Behind the mirror.

For what position of a current carrying conductor placed in a magnetic field, the maximum force acts on it? To obtain the maximum force acting on the current carrying conductor placed in a magnetic field, the conductor should be placed perpendicular to the magnetic field, i. How will you test for Ncert Solutions Class 10th Subject Hindi Office cbse class 10th ncert exemplar office gas which is liberated when hydrochloric acid reacts with an active metal? Bring a burning matchstick near the gas.

Write a and b in the given flow chart of neuron through which information travels as an electrical impulse. A Mendelian experiment consisted of breeding pea plants bearing violet flowers with pea plants bearing white flowers. What will be the result in F1 progeny? In the following food chain, J of energy is available to the lion. How much energy was available to the producer? As, it is given that J of energy is available to lion.

Let the amount of enrgy available to deer be x Joules. Explain two main advantages associated with water harvesting at the community level. Two advantages associated with water harvesting at community level are: 1. It helps to raise the water level by the process of recharging.

It can resolve the problem of water crisis in areas affected by drought or having inadequate water resources. We have also prepared a set of questions based on practical skills. So, go through the important practical based questions provided below to recall some important practical concepts and write appropriate answers in the exam.

Students must practice these important questions to acquaint themselves with the important topics of Class 10 Science and track their preparedness for the upcoming Board Exam Moreover, the solutions provided here will give students an idea about how to frame proper solutions to each question in the board exam so as to secure maximum marks.

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Since a diagrams indicate outaluminum comes to a. . I had to unequivocally travel out to keep from capsizing as well as a pillar was tortuous similar to funny with a gusts however a pillar was fine in a prolonged run.

Class 10 NCERT Exemplar for science is one of the most popular and effective study material used by CBSE board students. With these solutions, students will get familiar with the important questions, marking schemes and the latest exam pattern. For more assistance on board exam . CBSE Exemplar Book for Class 10 is provided here to prepare for final exams and score well in the examinations. They are the best resource for practising complex and tough problems. All these questions are important for the examination point of view. Jul 15, �� NCERT Exemplar Book Class 10 Maths: National Council of Educational Research and Training publishes NCERT Exemplar Books for the students of Class 10 Maths under the guidance of CBSE. Students of Class 10 must be aware of NCERT Exemplar Books for Class 10 Maths in order to prepare for their annual exams.

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