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question_answer1) What causes a tooth to become decayed?
question_answer2) Naveen made the following notes about a substance ?X?. What is substance ?X?? It has a definite mass It has a definite volume It does not take the shape of the container in which they are kept
question_answer3) How does light coloured clothes keep our bodies cool in summer?
question_answer4) _________ is not a part of alimentary canal.
question_answer5) Water is needed by all living things. Which part of the human body contains the most water?
question_answer6) Stethoscope helps us to know the functioning of
question_answer7) How does Frog protect itself from extreme weather conditions?
question_answer8) Washed clothes that are hanged out dry fastest on which of the following days?
question_answer9) Which of these causes cold and flu?
question_answer10) If we do NOT keep our sources of water clean, which of the following diseases can be easily spread?
question_answer11) Why is sunlight a basic need of plants?
question_answer12) Which of these diseases is caused by the bite of mosquito?
question_answer13) The figure below shows an activity which has been carried out in a laboratory. Identify the procese X.
question_answer14) How can P change into Q?
question_answer15) Which of these substances has definite volume but no fixed shape?
question_answer16) What is true about Moon?
question_answer17) The diagram below represents a process that takes place in a living thing in the presence of sunlight. \[Water+carbon\,\,dioxide\xrightarrow{\text{sunlight}}food+oxygen\] Identify the process in which the living thing produce food and oxygen?
question_answer18) Which of these is a non-living thing?
question_answer19) Which statement is/are true about dolphins and fishes? (i) Both dolphins and fishes respire through gills. (ii) Both of them are aquatic animals. (iii) They reproduce in different ways.
question_answer20) Which of these does NOT exhibit sensitivity?
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