Earth Sciences

There are signs of a massive - ENORMOUS! - meteor crater in the Caribbean Sea, off the coast of Mexico at a place called Chicxulub, at the northern tip of the Yucatan peninsula. It is about 65 million years old.

All the dinosaurs died off about 65 million years ago. So did 85% of all life on Earth.

Could there be a connection? About 30 years ago, the scientist Luis Alvarez thought that the at-that-time accepted theories of what might have killed off the dinosaurs - a plague, a new predator, volcanoes - were too simplistic. Alvarez theorized that a cosmic impact might have played a factor. He was widely ridiculed for years, but his explanation is now widely accepted as correct.

The atmosphere of Jupiter is primarily composed of hydrogen and helium, with small amounts of methane, ammonia, water vapor, and other trace gases. It also contains various organic molecules and complex compounds.

Hydrogen The sun is just made up of Hydrogen 74.9% and Helium 23.8%. The suns high pressure, and temperature fuses hydrogen into helium. The process is called Nuclear Fusion, this releases a lot of energy.

Teachers are sometimes correct, as in this case. The Sun is in the center of the solar system, while the Earth revolves around the Sun.

"Down to earth" is a colloqialism that is said about a person who is and conducts himself truthfully, honestly and gives of himself without reservation. Another such colloquialism is "salt of the earth"

In 1991, Domingo Cavallo set out to reverse Argentina's inflation through free-market reforms such as open trade. The cornerstone of the reform process was a currency board, under which the peso was fixed by law at par to the dollar.

Water on the moon can be found in the form of ice deposits in permanently shadowed craters near the poles. This water is likely preserved from comets impacting the moon's surface. There may also be water molecules embedded in the lunar soil and rocks.

Well, if you're talking about characteristics that do NOT apply to bacteria but still apply to living things, then here's a list:

- belonging to the domain Eukarya (eubacteria belongs to Bacteria, and archaebacteria belongs to Archaea)

- being eukaryotic (having organelles and a nucleus)

- not having a cell wall (as both do, although eubacteria has peptoglycogen in its cell wall)

I noticed that this is under "Mycology or Fungus", so here are a few differences between fungus and bacteria:

- fungus have chitin in their cell walls

- fungus are *usually* multicellular (though not always)

- fungus get their food through absorption

Antares has been seen and noticed by all creatures looking at the night sky. Millions of years ago it was an important star in the heavens. Antares (α Scorpii, α Sco, Alpha Scorpii) is a red supergiant star in the Milky Way galaxy and the sixteenth brightest star in the nighttime sky (sometimes listed as fifteenth brightest, if the two brighter components of the Capella quadruple star system are counted as one star). Along with Aldebaran, Spica, and Regulus it is one of the four brightest stars near the ecliptic.

All these stars must have been known to the first astronomers, the Babylonians.

The chemical in yew tree bark is taxol, which is a powerful anti-cancer compound that has been used in cancer treatments.

An observatory is a place that uses telescopes and scientific equipment for astronomical research. Observatories are often located in remote and dark locations to minimize light pollution and atmospheric interference.

The Earth's outer core is made of molten rock, or magma, but the Earth's mantle and crust are mostly made of solid rock. Magma is formed when rocks located deep in the Earth's mantle melt due to high temperatures and pressures.

Transform boundary / conservative boundary.

The Sun is gradually getting hotter (very slowly; millions of years before it's enough to be noticeable). In a couple of billion years it will increase enough that surface temperatures on Earth will be above the boiling point of water. It's not likely that any life will survive that. The Earth itself will still be around, it'll just be much like Venus is today: very hot and very dry. It will be another couple of billion years after that before the Sun turns into a red giant star, which will be large enough to consume Mercury and Venus and may be large enough to consume Earth as well.

Not like on Earth. The moon has no atmosphere, so there is no wind or air at all to cause erosion. However, the moon is bombarded with objects in space that normally would burn up in our atmosphere, resulting in all of the craters that can be seen from the Earth.

it's a bug in your lawn out here in n.m. & no u can't give it to anyone else unless you have it as a pet ha,ha.

Moderating climate refers to the ability of certain geographical features, such as oceans or mountains, to influence and stabilize local temperatures. These features can help to regulate temperature extremes by absorbing or releasing heat, creating a more temperate climate in an area.

The moon's surface does not directly impact breathing on Earth. The moon doesn't have an atmosphere like Earth, so there's no air or oxygen there for humans to breathe. The moon's gravity also is much weaker than Earth's, so our ability to breathe is not affected.

Earth can be compared to an island because it is a finite and isolated system in the vastness of space. Just like islands, Earth has limited resources and ecosystems that need to be carefully managed to sustain life. In both cases, understanding and protecting the unique environment is essential for the survival of the inhabitants.

Canis Minor translates to "smaller dog" in Latin, likely due to its proximity to Canis Major, the "larger dog" constellation. The Greek poet Aratus may have named it in the 3rd century BC. The brightest star in Canis Minor, Procyon, means "before the dog," possibly indicating that it rises before Canis Major in the night sky.

Temperatures on the moon can vary significantly, ranging from extremely hot during the day (up to 127 degrees Celsius) to very cold at night (as low as -173 degrees Celsius). This is due to the lack of atmosphere to regulate temperatures like on Earth where the atmosphere traps heat.

Nitrogen actually is a big part of chlorophyll which is the chemical that gives plants their dark green color. During fall plants turn colors other than green because they lose their chlorophyll. So Nitrogen does give plants the dark green color that looks so great. However, if you get too much nitrogen in the soil, then it will start hurting the plant.

Currently the Earth's pole points toward Polaris in Ursa Minor. 5000 years ago it pointed towards Vega.

You've got this one slightly confused...

There is Yule tide, which happens at about Christmas time, this is a paganistic festival which is a way of ending the year, in hope that a new year will come. Kind of a funeral and birth in one go.

The 'Tide' in this case is an old English word for time.

Christmas tide isn't a proper use of the word tide in this instance.

The temperature of a star can be determined by its color. Hotter stars appear blue/white, while cooler stars appear red.