The United States is in the Northern Hemisphere. Which statement(s) about the Southern Hemisphere is true?I. It is always warm in the Southern Hemisphere.II. When its summer in the Northern Hemisphere, it is winter in the Southern Hemisphere.III. In the Southern Hemisphere, the sun sets in the east.IV. When its winter in the Northern Hemisphere, it is summer in the Southern Hemisphere.
Humidity is a measure of -
The Milky Way is estimated to be about 100,000 light-years across its larger diameter. A light-year is a measure of
According to scientists, the sun has existed for 4.6 billion years. The sun produces energy by a nuclear conversion of hydrogen into helium. When hydrogen runs out, according to this theory, the sun will expand, engulfing Earth and other planets. Not to worry the expansion will not affect us, since the sun has enough hydrogen for another 4.6 billion years. When it expands, the sun will become what is called a red giant star. In another 500 million years, the sun will shrink to the current size of the Earth and will be called a white dwarf, cooling down for several billion years.According to the passage, the sun will eventually
According to scientists, the sun has existed for 4.6 billion years. The sun produces energy by a nuclear conversion of hydrogen into helium. When hydrogen runs out, according to this theory, the sun will expand, engulfing Earth and other planets. Not to worry the expansion will not affect us, since the sun has enough hydrogen for another 4.6 billion years. When it expands, the sun will become what is called a red giant star. In another 500 million years, the sun will shrink to the current size of the Earth and will be called a white dwarf, cooling down for several billion years.Based on this theory, the sun will, at some point, be a
Webbed feet enable ducks to swim better by
