19. The atomic number indicates how many neutrons there are, and the atomic mass tells us how many protons and neutrons are present within the nucleus of an atom.
The climate is Tropical.
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Nearly all food plants are classified as angiosperms. These are plants that have flowers and produce seeds enclosed in a carpel The angiosperms are generally the largest group and they include herbaceous plants, shrubs, grasses and most trees.
<span>Minerals are solids.
That is because when water freezes into ice it becomes a mineral, since it's a solid at that time.
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