The heaviest elements during the Earth’s formation were what?  What part of the Earth did they form?   The lighter elements that formed the Earth included what?  What part of the Earth did they form?   Where do scientists believe the Earth’s water came from?   How old was the Earth believed to be when the first stable land masses formed?   What type of rock formed the first stable continents?   Why is granite less dense than other rock in the mantle?   The tectonic plates “float” on what layer of the Earth?   Heat escaping from the Earth’s core creates what?   How many tectonic plates can be identified today?

Q: RNA is often characterized as being the first“biologically active” molecule. What two properties or…

A: The RNA world is a hypothetical stage in the evolutionary history of life on earth, in which self…

Q: In Nicholas Copernicus’ heliocentric model of our solar system, the above planet would have to be:…

A: Nicholas Copernicus, a Polish astronomer from the 16th century, revolutionized our understanding of…

Q: Once life began, what types of organisms lived on Earth forthe next two billion years? Where did…

A: Introduction There are several hypotheses presents on that how life starts on the primitive earth.…

Q: What experimentation has been done on finding the source or raw material for the first life on…

A: Harold Urey and Stanley Miller are two American scientists who attempted to create similar…

Q: If we could capture the spectrum of an exoplanet, we may find evidence for life on that planet in…

A: Fossils are the evidences for the history of the life on earth, the remains of a organism or any…

Q: underground into hardened rock. melted rock is READING Diagrans called magma. What causes a…

A: Rocks forms the important part of the earth. The cycle of rock formation is evident as it helps in…

Q: Several emergent properties of water contribute to the suitability of the environment for life.…

A: Water (H2O) is very essential for survival of living beings.

Q: K Name and match structure J with its function. [HINT: The structure name is a single word]

A: These structures as mentioned in the hint are of the Echinodermata phylum. These are the group of…

Q: Some scientists propose that Silicon might be a suitable alternative to Carbon as the basicatom that…

A: The possibility of silicon based life forms was proposed by the British astronomer Sir Harold…

Q: what was the first element formed in the universe

A: The Big Bang Theory is the leading explanation about how the universe began. It explains that the…

Q: 14. Using the diagram below: • What is the name of "Structure 1"? • What is the name of "Event A"?…

A: The female reproductive system in humans is a well-defined organs system made up of ovaries,…

Q: During the first 600 million years of Earth history, enzymes, ATP , and other molecules could have…

A: The primitive earth was in the form of a red hot, solidified cloud containing free atoms. The…

Q: How could we find whether there are substances that could support life on other planets?

A: By understanding how life evolved on earth, we can understand if any other planet can host or could…

Q: The electron shells in an atom of silicon (atomic symbol Si) each

A:

Q: If you added one more proton to an atom of iron, then what element would it become?   A. Cobalt   B.…

A: Proton carries a positive electrical charge and they alone determine the nucleus charge.Hence adding…

Q: Scientists, who support the "early genetic material" hypotheses, believe this biological component…

A: Introduction :- Any material of plant, animal, microbial, or other origin that carries genetic…

Q: -If 30 percent of the carbon-14 atoms remain in a sample, how long ago did the organism die? -Is…

A: The unstable isotope of the carbon is Carbon 14 (C-14). The half-life of a C-14 is 5730 years old.…

Q: Why is inclusion of methane in the gas flasks an essential part of the hypothesis that complex…

A: The main components of the early atmosphere of earth was water and carbon dioxide. Condensation of…

Q: Can you answer all the parts of the question for this diagram  A:What is Structure I? B:What is…

A: Mollusca is the second largest phylum in the animal kingdom. Most of the molluscs have shells. The…

Q: Ch. 16-2 Radiometric dating does not measure the age of an individual atom. It is a measure of the…

A: Radioactive dating helps to establish the age of the sample based on its atomic composition, and it…

Q: How is origin of life attributed to LIGHT and WATER? Give a detailed explanation.

A: The origin of life is still a mystery and not proved. There are many theories that are suggested by…

Q: Plato assigned the Greek “element” of air to which of the five regular polyhedra (with eight faces…

A: The objective of the question is to identify the regular polyhedron that Plato associated with the…

Q: The current geological era is the ________.   Question 32 options:   Cambrian   Paleozoic…

A:

Q: What distinguishes living things from non-living things? Throughout history, various societies have…

A: Living things are made up of cells while nonliving things do not have cells. Living things can…

Q: and why? W

A: INTRODUCTION  Before long and many years, progressed space-and ground-based observatories will…

Q: - How much time does it take for 1 half-life to occur?   -Approximately how many half-lives are…

A: Carbon is the element that is most commonly found in organic molecules. All organisms have a carbon…

Q: scientists continue exploring other planets and our solar system, they seek evidence to prove that…

A: Introduction: The composition of molecule of water (H2O) is made up of two hydrogen atoms and one…

Q: How does the structure of a DNA molecule help account for the great variety of life that exists on…

A: DNA is the specific and dominant building block of the entire living organisms. They provide almost…

Q: Geological time covers huge spans, up to billions of years. Yet humans rarely live for more than 100…

A: Geological time scale is important to understand the history of earth that how several natural…

Q: If 1 meter equals 1 billion years and each millimeter is 1 million years, is 4.6 meters 4,600…

A: Given that we have to represent time on a linear scale with 1 metre equal to 1 billion years.…

Paleontology

A branch of science concerning the scientific study of life from ancient times is known as paleontology. The scientists working on paleontology are known as paleontologists. Paleontologists collect the fossils of organisms from ancient times to classify them. The paleontologists also study the environment from ancient times to study the interactions between different organisms.