Type of WastesOnline version Direction: Guess the word behind the riddle. Just click "Show Clue" to reveal the picture and the riddle to be used to guess the answer. Encode your answer on the space provided below the clues. Click the word “Check” below to check your answer and score. by Earth Science 1 These wastes can most easily results in atmospheric pollution. Hints 1 These are generally dilute with air, passed through filters and then released to atmosphere through large chimneys. 2 These are waste products resulting from various activitie, such as manufacturing, processing, material consumption or biological processes.