Planet Earth

The study of Earth's physical features often begins with geology, which focuses on the structure and composition of the Earth's crust. It can also include disciplines like geomorphology, which examines the landforms and surface processes shaping the Earth's surface. This study can extend to geophysics, which explores the Earth's interior structure and dynamics.

The atmosphere of Uranus is primarily composed of hydrogen (82.5%) and helium (15.2%), with small amounts of methane (2.3%) and trace amounts of other gases. The blue-green color of Uranus is due to the presence of methane in its atmosphere, which absorbs red light and reflects blue and green light.

Since earth is not round but elliptical in shape, it's diameter at equator is 12,756km and it's diameter at poles is 12,712km.

Some people say that the Big Bang began it. This, however, is just a theory. To this day, scientists, still do not know how humanity and life on our planet came to be.

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The Big Bang Theory models the Universe as a whole, and so far at least is the nearest theory to fit observations and calculations; but it leaves the uncomfortable "What came before?" question.. The Solar System is much younger.

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The two nouns in the second sentence ought be the other way round - Life in general came first, almost certainly as single-celled organisms first, but you are right that the actual mechanism has not been determined. We hominids appeared within the last 3 or 4 million years, very recently in geological terms, with our own species probably less than 1 million. It's hard to know because land animals from the time did not leave many fossils, compared to the rich assemblages of marine fossils.

No, 21% of Earth's atmosphere is oxygen. Nitrogen makes up 78%.

Pluto's gravity is about 6% that of the Earth. A person weighing 100 lbs on the Earth would weigh 6 lbs on Pluto.

Saturn's atmosphere is mainly composed of hydrogen (around 96.3%) and helium (about 3.25%). Trace amounts of other gases like methane, ammonia, and water vapor are also present. The high concentration of hydrogen gives Saturn its characteristic yellowish color.

The Industrial Revolution and the Technology Age have led to increased human population, urbanization, and environmental degradation through pollution and resource exploitation. These changes could have long-term consequences on biodiversity, ecosystems, and climate, potentially altering the course of evolution for many species on Earth. Adaptation to these changing environments may become a key factor influencing the evolution of life on our planet.

Equatorial Diameter: 7,928 miles Polar Diameter:7,901 miles Circumference: 24,907 miles Surface Area:197 million square miles

The stars in any constellation all tend to be different distances from us. They just appear as a pattern as we look at them. Of the stars in Gemini, the nearest is 33.7 lightyears away. That is about 318,826,616,925,973 kilometres or 198,109,675,076,288 miles away.

The Earth is made out of many things. Deep inside Earth, near its center, lies Earth's core which is mostly made up of nickel and iron. Above the core is Earth's mantle, which is made up of rock containing silicon, iron, magnesium, aluminum, oxygen and other minerals. The rocky surface layer of Earth, called the crust, is made up of mostly oxygen, silicon, aluminum, iron, calcium, sodium, potassium and magnesium. Earth's surface is mainly covered with liquid water and its atmosphere is is mainly nitrogen and oxygen, with smaller amounts of carbon dioxide, water vapor and other gases.

Earth is called the water planet because about 71% of its surface is covered by oceans. Water is essential for life and plays a crucial role in various earth processes such as weather patterns, climate regulation, and supporting diverse ecosystems.

No, the Arctic is not a continent. The Arctic used to be a continent, however, it split. Today, the Arctic is an ocean, named for the continent that used to be where it lies today, at the northern portion of the Earth.

As of September 2008, the world's population is estimated to be just over 6.721 billion. In line with population projections, this figure continues to grow at rates that were unprecedented before the 20th century, although the rate of growth has almost halved since its peak of 2.2% per year, which was reached in 1963. The world's population, on its current growth trajectory, is expected to reach nearly 9 billion by the year 2042. (from wikipedia).

Yes, and without a telescope. But with a telescope, you can easily make it out seeing a blue ball about the size of the Esc key on a laptop.

The study of earth that looks at the planet as a whole is called "Earth system science." It focuses on the interactions and interconnectedness of Earth's atmosphere, hydrosphere, geosphere, and biosphere.

It is about 3,961.3 miles, or 6,378.1 kilometers

The most important effect of rotation is the creation of day and night as the Earth spins on its axis. This rotation causes different parts of the Earth to face the sun at different times, leading to the cycle of daylight and darkness.

The sun is very far away, it takes light form the Sun 8 minutes to reach the Earth. At this scale the difference in height between the top of a mountain and the beach is insignificant, both places receive the same amount of light/heat form the Sun.

What makes the mountain top cold is vertical variation in temperature caused by the earths atmosphere. As you go up form sea level, the air cools by about one degree Centigrade for every 300 feet you go up. Thus as you are surrounded by colder air, it is colder on the top of a mountain - (or looking at it another way, the mountain pokes up into a region of colder air).

Look at the link I will place below for more information on air temperature.

The length of the umbra cast by a plant from it's parent star can be given by: distance from star / ( ( radius of star / radius of planet ) - 1 ) The length of Earth's umbra therefore varries from about 1.36 million km at perihelion to about 1.4 million km at aphelion. This is just short of the distance of the Earth-Sun Lagrange 2 point (1.5 million km) so satellites posted at this location will generally see a constant annular eclipse of the sun, with the Earth blocking most of it, but not quite all.

like, 4.2 per second, and deaths are 1.7 per second, i read that somewhere. merry xmas.

A heartbeat typically takes around eight seconds to occur. This is the average time it takes for the heart to complete one full cycle of contraction and relaxation.

To help heal a dying world, we can focus on sustainable practices such as reducing waste, conserving water and energy, supporting renewable energy sources, promoting biodiversity and conservation efforts, and advocating for policies that protect the environment. Additionally, raising awareness, supporting ethical companies, and participating in community clean-up initiatives can make a positive impact on the health of the planet.