Question 11 MarkTrue or False: Animals cannot live without plants.AnswerખરુંView full question & answer→
Question 21 MarkTrue or False: The air in a glass tumbler comes out, if it is held upside down.AnswerખોટુંView full question & answer→
Question 31 MarkTrue or False: Plants produce more oxygen than they consume through the process of photosynthesis.AnswerખરુંView full question & answer→
Question 41 MarkTrue or False: We must always breathe through our mouth.AnswerખોટુંView full question & answer→
Question 51 MarkTrue or False: Animals and plants use oxygen for respiration.AnswerખરુંView full question & answer→
Question 61 MarkTrue or False: A candle burns in the presence of oxygen.AnswerખરુંView full question & answer→
Question 81 MarkTrue or False: In a half filled bowl with water, the remaining half contains air.AnswerખરુંView full question & answer→
Question 111 MarkTrue or False: Mountaineers carry carbon dioxide cylinders with them while climbing high mountains.AnswerખોટુંView full question & answer→
Question 121 MarkTrue or False: The thin layer of air surrounding the earth is called weather.AnswerખોટુંView full question & answer→