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In basic terms, shape describes a flat, enclosed area of space. Shapes can be constructed with colors and lines, but all shapes are limited to two dimensions – width and length. Curves and other irregular, flowy shapes are known as organic shapes, while angular shapes like squares and triangles are geometric shapes.
Answer:
more nitrogen gas became present in the atmosphere
No, that is False. They normally occur in the layer called the Troposphere. The Troposphere is where all the plains and the jets fly. The Mesosphere is too high,