Answer:
The sun
Explanation:
“Approximately 4.6 billion years ago, the solar system was a cloud of dust and gas known as a solar nebula. Gravity collapsed the material in on itself as it began to spin, forming the sun in the center of the nebula. With the rise of the sun, the remaining material began to clump together.“
Answer:
Physical properties of mercury are described here.
Explanation:
Mercury is a metal. Mercury is the only metal which is liquid at room temperature. Mercury is shiny silver in liquid form. It has a melting point of -38.9 degree Celsius and a boiling point of 356.7 degree Celsius. The symbol of mercury is Hg and it has an atomic number, 80 and atomic weight of 200.59. Mercury is a poor conductor of heat and good conductor of electricity. Mercury is considered a heavy metal.
In this question, its liquid form, and the volume of the mercury grows as temperature rises, are the examples of physical properties of the mercury.
Answer:
The rate of sea-level rise is expected to increase over time and its impact is discussed below in detail.
Explanation:
Outcomes. When sea levels increase as immediately as they have been, even a modest improvement can have disastrous effects on coastal environments remote inland, it can cause catastrophic erosion, lost environment for fish, birds, and plants, aquifer and horticultural soil poisoning with salt, and wetland flooding.
The answer is black holes. I hope this helps
