Compléter Natural World Act.2Version en ligne Natural World Act.2 pg. 94. This activity helps students practice their skills regarding book contents . par Margarita Araque 1 atmosphere Nitrogen butterflies Oxygen Particles Ants Predators species stem insect flies Radiation spikes bettles 1 . and are gases which in the earth´s 2 . Both and are types of flying 3 . is the name of energy in the ofrm of rays or waves 4 . and live on the ground and soil 5 . Leaves and flowers grow from the main of a plant 6 . are tiny poeces of material 7 . are things wich catch and eat other 8 . Some plants have long sharp , , like needle s