Physics, 19.08.2021 20:50 shapeshifter119
Drag each tile to the correct box.
Arrange the events in the life of a star in the correct order.
All that remains of the star now is the core. In some cases, the star turns into a black hole.
As the nuclear fusion sets off a chain reaction, the nebula gets hotter and brighter and turns into a star.
The star stays in the main sequence stage for a long time.
The star runs out of hydrogen and turns into a planetary nebula or a supernova, depending on its mass.
Heavy elements are created when the supernova explodes.
The temperature increases in the center of a nebula, and nuclei begin to fuse.
Answers: 2
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Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of
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Physics, 22.06.2019 21:30
Which of these statements best explains how the hydrosphere interacts with the atmosphere to affect global climate? mountains block rain clouds and cause changes in global rainfall and evaporation. humans burn fossil fuels to produce greenhouse gases which cause global warming. humans cut down trees which affects the amount of oxygen in different parts of the globe. greenhouse gases, like carbon dioxide, dissolve in oceans and prevent global warming.
Answers: 1
Physics, 22.06.2019 22:30
Compare the patterns of the two waves shown in the image. which statement is true about these waves?
Answers: 1
Drag each tile to the correct box.
Arrange the events in the life of a star in the correct order.<...
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