9th Class

Question: Define force. Answer: It is a push or pull on an object that produces acceleration in the body on which it acts. Question: What is S.I. unit of force? Answer: S.I. unit of force is Newton. Question: Define one Newton. Answer: A force of one Newton produces an acceleration …

NCERT 9th Class (CBSE) Science: Improvement in Food Resources Quiz 20 Multiple Choice Questions related to NCERT 9th Class (CBSE) Science: Improvement in Food Resources Quiz: Berseem, oats or Sudan grass are raised as food for the livestock, called fodder crops. By introducing a gene with required characters into a …

Question: Name any two fodder crops. Answer: Berseem, oats or Sudan grass are raised as food for the livestock, called fodder crops. Question: What do you understand by photoperiod of sunlight? Answer: Photoperiod are related to the duration of sunlight required for plant growth. Question: Name two kharif crops. Answer: …

NCERT 9th Class (CBSE) Science: Gravitation Quiz 18 Multiple Choice Questions related to NCERT 9th Class (CBSE) Science: Gravitation Quiz: Lactometer is a device used to find the purity of a given sample of milk. Hydrometer is a device used to find the density of liquids. The pressure exerted by …

Question: What is the value of gravitational constant G: (1) On the earth, (2) On the moon. Answer:  6.67 × 10-11  Nm2 kg2 6.67 × 10-11  Nm2 kg2 Question: Which force is  responsible for the moon revolving round the earth? Answer: Gravitational force. Question: Name the scientist who gave the three laws of …

NCERT 9th Class (CBSE) Science: Diversity in Living Organisms Quiz 19 Multiple Choice Questions related to NCERT 9th Class (CBSE) Science: Diversity in Living Organisms Quiz: The organisms using dead and decaying organic matter as food are said to show saprophytic nutrition. The group of plants with covered seeds are …

Question: Who wrote the book “The Origin of Species”? Answer: Charles Darwin in 1859. Question: Who proposed the classification of organisms into 5 kingdom? Answer: Robert Whittaker (1959). Question: Define species. Answer: All organisms that are similar to breed and perpetuate. Question: Give example of the organism belonging to Monera and Protista Kingdom. …

Question: Define health. Answer: Health means a state of physical, mental and social well-being. Question: Define disease. Answer: Disease means being uncomfortable. Question: What do you mean by symptoms of disease? Answer: Symptoms of disease are the signs of a disease which indicates the presence of a particular disease. Question: What …

NCERT 9th Class (CBSE) Science: Why Do We Fall Ill Quiz 22 Multiple Choice Questions related to NCERT 9th Class (CBSE) Science: Why Do We Fall Ill Quiz: Health means a state of physical, mental and social well-being. Symptoms of disease are the signs of a disease which indicates the …

NCERT 9th Class (CBSE) Science: Natural Resources Quiz 22 Multiple Choice Questions related to NCERT 9th Class (CBSE) Science: Natural Resources Quiz Combustion, respiration and in the formation of oxides of nitrogen. Symptoms of disease are the signs of a disease which indicates the presence of a particular disease. Rainfall …