What are the divisions of the geologic time scale?

Q: A scientist discovers something new about the composition of the mantle. What type of rock (group)…

A: The mantle is the part of the earth between its crust and its core.

Q: Use the diagram below to answer the questions that follows 1) what type of plate boundary occurs at…

A: ANS1. The plate boundary that occurs at X is the mid-ocean ridge or spreading center.  The mid-ocean…

Q: List the four large time periods into which biologists divide the earth’s past

A: The geologic time scale (GTS) is a system of chronological dating that classifies geological strata…

Q: Analyze the following data table indicating the amount of Carbon Dioxide in Earth's atmosphere at…

A: Earth`s temperature is in direct correlation with the levels of CO2 which is the primary greenhouse…

Q: What are the current conditions of the ecosystem, the Great Barrier Reef?

A: Great barrier reef is the world's largest coral reef system which is present in australia. It…

Q: what can you say about the story of earth?

A: Evolution mainly  focus on living organism. Evolution means "descent with modification" ( Darwin,…

Q: Describe in chronological order the periods of Earth’shistory, and identify one major biological…

A: Chronological refers to events that happened as they relate to time. It is the geologic time scale…

Q: What are the present human biological diversity?

A:

Q: Describe how the Earth's origin structure gives it the ability to support life

A: Earth is a planet with huge range of life forms. It's structure and properties makes it a ideal…

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: Has the number of species on Earth increased steadily since the origin of life?

A: Ans: Species: The species are those which are capable of interbreeding and producing the offspring.…

Q: What are the 3 layers of the earth

A: The distance from beneath your foot to the center of the earth is approx 6,371 Km.  The internal…

Q: What two geoscience process shaped the Hawaii islands

A: Hawaii is the only island state of the United States of America in the Pacific Ocean. The Hawaiian…

Q: Which event was the most important in environmental history?

A: The principal goal of environmental history is to deepen our understanding of how humans has been…

Q: What are the 4 parts of the intertidal zone?

A: The intertidal zone is the territory where the sea meets the land among elevated and low tides.…

Q: The wooly mammoth lived from the Pilocene to the Holocene time period. Compare the temperate in…

A: 1.The whole time period of earth divided into EONS. EONS into ERA . ERA into PERIODS , PERIODS into…

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: If Marine communities dominated during the Early Paleozoic, why move to land? What would an…

A: Paleozoic era was a major interval of geologic time that began 541 million years ago and ended about…

Q: What are the steps in the process of seafloor spreading?

A: Seafloor spreading is the process by which new oceanic crust is formed by the upwelling of magma…

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: What is the study of the past and present day distribution of organisms called?

A: Biology is field of science which involves study of living organisms  and biotic component on the…

Q: Describe the kinds of evidence about the history of life that canbe found in sedimentary rock…

A: Different types of living one's lives on the earth.After they died their deposits are accumulated on…

Q: First is the occurrence of (1) found in geologic strata. Write the answer for #1

A: Introduction Strata are layers of rock, it forms during sediment deposition, that is, the laying…

Q: 1) why is nitrogen very much abundant in the atmosphere as compared to oxygen which support plant…

A: *The most abundant naturally occurring gas ( in air) is Nitrogen (N2), which is up about 78% of air.…

Q: PART C: Biogeography 1 What is biogeography? 2 What was Laurasia? a On which modern continents would…

A: 1. Biogeography:   The study of the distribution of organisms and ecosystems in geographic space and…

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%…

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.