They will study how living things interact, pollution, water-cycle, carbon dioxide-oxygen cycle, and food-mineral cycle.
(They; will study; things interact, pollution, water-cycle, carbon dioxide-oxygen cycle, and food-mineral cycle) Context(They will study,List([0, 15))):(They; will study living; ) Context(They will study,List([0, 15))):(things; interact; )
They will study,List([0, 15)) They will study,List([0, 15))
They They things
will study will study living interact
things interact, pollution, water-cycle, carbon dioxide-oxygen cycle, and food-mineral cycle