What was a significant result of the Mars Phoenix project?a. culturing bacteriab. verifying waterc. finding organic matterd. discovering precious metals

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: Describe in your own words how the Earth’s layers were formed

A: Earth is the planet on which we live.

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: Distinguish between AB-horizon and A/B- horizon

A: Soil profile defines the structure of soil divided into different horizons.

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

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

Q: Which statements describe early settlements? Check all that apply. O People grew specific crops. O…

A: Homo sapiens, just after evolution, were nomads. They were hunters and gatherers who never settled…

Q: Describe Redi’s work and why it was important.

A: Francesco Redi is known as the “founder of experimental biology” and also as the “father of modern…

Q: Which of the following describes the organisms and/or processes that were most influential in the…

A: The earth is one of the eight planets revolving around the sun. It is estimated that earth have been…

Q: The first forms of life on Earth were ________. a. plants b. microorganisms c. birds d. dinosaurs

A: Earth  can be defined as the third  planet of the sun and the only astronomical object  that is…

Q: What is examined to do relative dating? O A. Layers of sediment O B. Uranium deposits O c. Carbon-14…

A: Answer- Relative dating is the process by which layers of sediments including fossils are studied to…

Q: Compare and contrast Relative dating, Absolute dating, and Radiometric dating.

A: Every preserved bones, impression, or residue of a once-living thing from a previous geological…

Q: What were the consequences of an “oxygenated” Earth to life and to the atmosphere itself

A:

Q: Event How Long Ago? # Organisms Extinet Causes Cretaceous

A: Cretaceous extinction :  Cretaceous extinction took place about 66 millions ago . Organisms which…

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: Volcanic ash can be used to date fossil finds because each time it is expelled by an eruption it has…

A: The answer is True

Q: influence of america in the philippines

A: The relationship between united states and Philippines has been described as special relationship.…

Q: Which method is used to assign numerical ages to events or materials? absolute dating half-life…

A: By measuring the radioactive decay of isotopes or the effects of radiation on the crystal structure…

Q: M 1 2 3 4 10,000 bp 3,000 bp 1,000 bp 250 bp

A: On the lane 4 , When the DNA appears as a messy , continuous band at the bottom rather than a…

Q: In what order did events occur that led to life on Earth? (1) appearance of aerobic organisms, (2)…

A: C is possible right answer

Q: The early atmosphere lacked which gas? 1. carbon dioxide 2. oxygen 3. amonia 4. nitrogen

A: The early atmosphere was likely to contain a lot of carbon dioxide and water vapor because it was…

Q: Metagenesis takes place below the Earth's surface where temperature is less than 150°C . Select one:…

A: Answer : True

Q: What process does biomagnification describe?   A. Cell Growth  B. Concentration of Substances C.…

A: Answer: Biomagnification : It is the process by which toxicity increases within the organisms, it…

Q: Use the diagram below to answer the questions that follows. 1. Which type of plate boundary occurs…

A: The edges where two plates meet are known as plate boundaries. The majority of geologic events, such…

Q: Radiometric dating uses the decay of              to             to determine how old fossils of…

A: Radiometric dating determines the age of historical objects in years via measuring the occurrence of…

Q: What was the Earth like million of years ago?

A: Millions of years ago, there is no life on the Earth. The temperature of the Earth was scorching,…

Q: How is sediment used for dating? O A. The newest layer is most radioactive. O B. The newest layer is…

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

Q: Describe what the early atmosphere was like and what cause a large amount of oxygen (O2) to build up…

A: Early atmosphere  Around 4.6 billion years ago, the Earth was formed from a heated mixture of gases…

Q: an abundance of ______________ in earth's early atmosphere would have interfered with assembly  of…

A: Organic molecules are molecules found in all the living organisms. These molecules are formed by a…

Q: Assuming that the early lithosphere had already been created, which sphere (the atmosphere or the…

A: Introduction The Stiff, Outermost Shell Of A Terrestrial-type Planet Or Natural Satellite Is Called…

Q: Cenozoic Era

A: The Cenozoic era began about 66 million years ago and continues into the present, is the third era…

Q: - What method can scientists use to determine when the fossil above appeared on Earth? SC.7.L.15.1

A: Fossils should be studied in terms of time and occurrence for understanding evolutionary phenomena.…

Q: Oceans were a good environment for early organisms because tney O shielded organisms from…

A: According to guidelines we have to answer the first question only so please kindly post the…

Q: Rock strata with fossils Which organism is most recent? a b d a

A: Fossils These are defined as the remains of organisms such as plants, animals, single-celled living…

Q: n Stanley Miller’s experiment to recreate the early Earth conditions that gave rise to life,…

A: The Stanley miller's experiment is also called miller-Urey experiment. It was a chemical experiment…

Q: Which of these events occurred in the Mesozoic era? First mammals First cyanobacteria First bacteria…

A: Mesozoic era has three periods cretaceous, Jurassic and Triassic periods. It is the age of reptiles.

Q: Which of the following has not been a major objective of Marsexploration?a. to analyze elements in…

A: Mars exploration is done by NASA to find the prospects of life on Mars.

Q: A. What is the PROTEROZOIC LIFE? B. Discuss the Great Oxygenation Event. C. Discuss the CAMBRIAN…

A: Geological time scale is a evolutionary event  which determines how the life appear , its…

Q: Could the First Biological Molecules Have Formed NearVolcanoes on Early Earth?

A: In 1953, Stanley Miller conducted an experiment in the laboratory of Harold Urey to understand the…

Q: Causes of mass extinction

A: Biodiversity is diversity of various living organisms on the planet that it contains different types…

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: at is the term for an element that decays into another O A. Sediment O B. Mesozoic O C. Radioactive…

A: This is the physical phenomenon of certain elements of emitting energy in the form of radiation.

Q: Life first appeared on Earth ___________ of years ago. Choose one: A. billions B. hundreds…

A: Earth is formed around ~4.5 billion of years ago. Life on earth had started after some time.

Q: Approximately when did life first appear on land A. 500 million years ago B. 2 billion years ago…

A: Question - Approximately when did life first appear on land A. 500 million years ago B. 2 billion…

Q: Does the Philippines have a global city? Name the city and explain why.

A: Metro Manila, like Seoul, Shanghai, and Jakarta, has become an emerging global city as the…

Q: The Miller experiment consisted of various gases, believed to have been present in the early…

A: Millers experiment proved that If electric discharge is passed through a mixture of such gases have…

Q: Solid wastes produced from burning of fossils fuels is: A) Carbon dioxide B)Water vapor Ash Sulfur…

A: Fossil fuels are hydrocarbons, primarily coal, fuel oil or natural gas, formed from the remains of…