What evidence would you look for on one of these moons that would tell you that life may have existed on it in the past?

Q: Why is it hard to create a timeline of events chronicling Earth’s History?

A: There are timeliness but they are often conjectured and who can argue with them with an alternative.…

Q: How did discoveries in the deep sea influence scientists' ideas about whether life could be found…

A: A discussion of life elsewhere therefore naturally begins with a review of some key aspects of the…

Q: The heaviest elements during the Earth’s formation were what?  What part of the Earth did they form?…

A: The structure of the earth is divided into four major components: the crust, the mantle, the outer…

Q: a direct outcome of the formation of the Moon according to the giant impact theory?

A: The giant impact theory suggests that the Moon formed out of the debris left over from a collision…

Q: What does it tell us if we discover life on one of these moons and it has characteristics similar to…

A: If we discover life on one of these moons and it shows alike characteristics as that of earth then…

Q: In the 1950s, scientists Miller and Urey conducted a classic experiment in which water, methane,…

A: Evolution is the study of origin of earth, origin of life on earth and relationship between…

Q: What is the origin and function of terra preta?

A: Terra Preta (Portuguese for "Black Earth") is a soil-building technology invented by ancient…

Q: Why can Earth, in many ways, be considered amicrobial planet?

A: Micro-organism are tiny organisms that cannot be seen by the naked eye, but are visible under…

Q: What does not orbit the sun

A: Jupiter is the sun's fifth planet.The gas giant is the solar system's largest planet, weighing more…

Q: What argument convinced most scientists in the 1800s that Earth was more than 6,000 years old?…

A: Fossils are the remains of the organisms that were present on the earth in the past.

Q: describe 3 characteristics that make e

A: The third planet from the sun is the earth. And 29.2% surface of the earth is land and the remaining…

Q: During what geologic period did life on Earth begin?

A: Evolution is the process of gradual changes occurring in the species over a period of time, when the…

Q: How does the fact that Earth is a sphere tilted on its axis influence thedistribution of life?

A: Earth is so far the only planet that has the capability to sustain life on it. There are many…

Q: Four billion years ago, the Earth was a thin-crusted inferno. Which probable stage of physical and…

A: Solar system was originated around 4.6 billion years ago from contraction of rotating gas and dust…

Q: List several significant events in the history of life on earth that are associated with the K-T…

A: KT boundary is the boundary between the age of reptiles that occurred in the Mezoxoic era and age of…

Q: Life originated from the earth’s inorganic atmosphere in the post, but this no longer happens today.…

A: Theories from various scientists propose that in Earth's prebiotic history, simple organic matter…

Q: What evidence would you look for on Enceladus, Europa or Mars that would tell you that life may have…

A: Europa is the smallest of four Galilean moons orbiting Jupiter. Enceladus is the sixth-largest moon…

Q: What was the composition of the earth’s atmosphere at the time of the origin of life, and how did it…

A: Earth was originally in the molten lava state mainly consists of hydrogen sulfide and other…

Q: What is the most accepted hypothesis on the origin of life on earth? How does it compare to the…

A: Introduction The heterotrophic hypothesis on the origin of life is the most compelling and widely…

Q: What argument convinced most scientists in the 1800s that Earth was more than 6,000 years old? O The…

A: Introduction All life on earth began from the universal last common ancestor which lived 3 to 4…

Q: “Life has profoundly changed the Earth.” Explain whether or notthese experimental results support…

A: The earth was formed about 4,570 million years ago and over the passage of time, different…

Q: Why are scientists interested in the primordial synthesis of organic molecules when it comes to the…

A: Introduction: The Oparin-Haldane hypothesis proposed that inorganic molecules in the atmosphere of…

Q: HOW OLD IS EARTH?   HOW LONG DID THE LONGEST EON (SO FAR) LAST?

A: Different planets have different atmosphere.

Q: what element rise that caused the diversification event in evolution of earth

A: Introduction : The rise in oxygen, which is termed the Great Oxygenation Event is an important event…

Q: If the earth migrated backward to three times it's current distance away from the sun, by how much…

A: Let Fg1 be the gravitational force when distance of earth from sun is x Let Fg2 be the gravitation…

Q: Which of the following is not thought to have been a source of organic molecules on early Earth?* O…

A: Cosmic dust

Q: What's the earth crust?

A: Earth is a planet that is made up of the lithosphere, hydrosphere, and atmosphere. All of these…

Q: How would you describe earth of millions year ago

A: It is believed that our planet Earth is about 4.54 billion years old.  About 3.5 billion years ago…

Q: Which of the following theories as regards the origin of life on earth is accepted today? A. Theory…

A: The origin of life on earth is known to arise from the non-living matter, organic compound. The…

Q: We are relatively "new" to the Earth yet how come our impact to the Earth System has been profound?

A:

Q: How have changes in earths systems contributed to the evolution of life?

A: Earth and its environment are persistently modified. Plate tectonics move the landmasses, raise…

Q: During the Paleozoic, many life forms developed hard parts (shells/bones/etc.).  Why would it be…

A: Shelled animals, the majority of which are sea-based, come in a wide range of shapes and sizes.…

Q: The earth is about 4.6 billion years old. Based on the formation of seafloor spreading, why do you…

A: The newest, thinnest crust on Earth is located near the center of mid-ocean ridge—the actual site of…

Q: Give 1 reason from the reading that shows that there are no life forms on Venus.

A: Venus is the second planet in our solar system that is named after a female. It is slightly smaller…

Q: True or false. The supercontinent pangaea formed about four billion years ago.

A: A supercontinent is a landmass that contains most or all of the land on Earth. The landmass formed…

Q: How do scientists really know how old the planet is?

A: A planet is a huge object like Earth or Mars that orbits a star. Planets don’t produce light and…

Q: A. How old is the Earth? B. How long did the longest eon (so far) last? C. How many years ago did…

A: Epoch is longer than era. Eon is the longest period of geological time.

Q: Radiometric dating is a technique used to determine the age of rocks. Geologists have used this…

A: Radiometric dating is a technique used to determine the age of rocks. There is a constant rate of…

Q: What are stromatolites? From what we know of their formation today, why might we expect them to have…

A: Photosynthetic microbes live on the surface of the water. These microbes generate oxygen during the…

Q: When scientists try to assess the habitability of Mars, what is their guiding principle, based on…

A: Introduction Life:- It is defined as any system capable of performing functions such as breathing,…

Q: Describe the conditions on Earth 4.5 billion years ago

A: Evolution is the process of slow gradual change over a period of time. The process of evolution…

Q: How are the different periods in the history of the earths broken up?

A: Evolutionary biology is the branch of biology that deals with the study of evolution or orderly…

Q: How do we know when oceans were first present on Earth?Why is the presence of oceans significant to…

A: The water body, which consists of hydrosphere of different planets, is called oceans. The 71%…

Q: What type of plates that float on top of the mantle do scientist believe that the Earth's crust is…

A: The earth is made up of different layers: 1)The Inner core- It is the inner and hottest layer of the…

Q: 19.Approximately how old is earth? Group of answer choices a.about 4.567 billion years b.about a…

A: Fossils are dead plants and animals that have been preserved in sedimentary rock or other crust…