Question 11 MarkIn the process of photosynthesis, plants make their own food and $.........$ gas is produced along with it.AnswerOxygenView full question & answer→
Question 21 MarkDuring $.........$ the wind blows at a very high speed.AnswerstormView full question & answer→
Question 41 Mark$.........$ gas present in the air is necessary in respiration for the survival of living beings.AnswerOxygenView full question & answer→
Question 71 MarkThe presence of $.........$ in air is important for the water cycle in nature.Answerwater vapourView full question & answer→
Question 81 MarkThe component of air used by green plants to make their food, is $.........$Answercarbon dioxideView full question & answer→
Question 91 MarkThe layer of air around the earth is known as $.........$AnswerAtmosphereView full question & answer→