MCQ 511 MarkLife bearing layer on the earth is:ALithosphere.BHydrosphere.CAtmosphere.✓Biosphere.AnswerCorrect option: D. Biosphere.View full question & answer→
MCQ 521 Mark$.......$ Must learn to live and use their environment in a harmonious way:AAnimals.BPlants.✓Humans.DBirds.AnswerCorrect option: C. Humans.View full question & answer→
MCQ 531 MarkWhich one of the following is created by nature?ACars, scooters and buses.✓Mountains, rivers and trees.CRoads, books, pen and copies.DAll of these.AnswerCorrect option: B. Mountains, rivers and trees.View full question & answer→
MCQ 541 MarkA special day is celebrated on $5^{\text {th }}$ June:AAir Environment Day.BWater Environment Day.✓World Environment Day.DEarth Environment Day.AnswerCorrect option: C. World Environment Day.View full question & answer→