Ravi decided to go from his house to his friend's house which is nearby. He chose to go in the [blank_start]____________[blank_end] so that that is no pollution
9. The harmful effect of burning waste materials in a open space will cause [blank_start]__________[blank_end]. It will affect the [blank_start]______________[blank_end] and may lead to [blank_start]_______________[blank_end] cancer if this practice
Sam used a page from his notebook and mad a paper cup. He stored [blank_start]___________[blank_end] in it for few hours because it is [blank_start]___________[blank_end] material