6. What percentage of the soil was contaminated? 7. What situations would a contaminated soil sample be of concern to engineers?

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A: The natural separation of heavy minerals from light ones by moving water, air, or gravity is called ...

Q: A group of scientists is interested in learning about succession. They design sterilized, artificial...

A:   Clement's hypothesis suggests that plant succession was a series of events. The climate is the mai...

Q: Compared to the density of liquid water, the density of an ice cube is

A:   The liquid water density is 997 kg/m³ and the density of ice is about 900 kg/m3. Ice is comparativ...

Q: In the context of galaxies and galaxy formation, what are tidal streams, and how are they created?

A: When a smaller galaxy merges with a larger one, it leaves behind a trail of stars that are stripped ...

Q: If a star is 30 parsecs away, what is its observed parallax shift?

A:   The star's distance and its parallax angle is related as d = 1/p where the distance d is measured ...

Q: Which is a handy way to convert between seconds and years! In other words, there are 31.5 million se...

A: Number of years passed since AD 1054 = 966  Number of seconds in 1 year = 3.15 x 107  Therefore, the...

Q: how does the force of gravity cause tidal coupling between celestial objects

A: Tides are the periodic rising and falling of sea level that occur daily throughout the ocean. As the...

Q: If you represented Earth's history by a line thatis 0.5 m long I land? cm How long a segment (in mm)...

A: The entire history of the Earth is shown as a line 0.5meter long. The Length of 0.5meter long repres...

Q: In this lab the student will make use of Wien's Law and the Stellar radius formula to calculate the ...

A: Step 1: Calculate the temperature of the star relative to the Sun TstarSun =  2.98 x 106 (nm.K)λmax ...

Q: Consider the following key mathematical expressions: Кр 3 foc * Кос Кос 3 0.63 * Kow tr = 1+ (bulk d...

A: Step 1: Convert log(Kow) to absolute values Kow for Aldrin = 175.915 Kow for Chlordane = 16.12  

Q: Below you see a diagram with the heat flow in and out of the Earth with a different climate. a.) wha...

A: The fraction of the incoming solar energy that is reflected back towards space is known as the earth...

Q: Which of the following would not produce a magnetic field? O Electron rotating about its axis O Stat...

A:   A moving charge produces both electric field and magnetic field. A stationary charge or charge at ...

Q: Order the following steps in the formation of a Terrestial planet chronoligically. gravitational col...

A:   Gravitational collapse and accretion of primordial gas and dust cloud gave birth to the Solar Syst...

Q: If your seismograph station is located 1,000 miles from the epicenter of an earthquake, how long wil...

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Q: How many days is the Moon in the waxing phase and the waning phase?

A: The Earth's lunar cycle lasts 29.5 days. The waxing phase of the moon occurs when the moon is increa...

Q: A satellite is in circular orbit around Earth at an altitude of three Earth radii above the surface....

A: Orbital velocity (vorbit) = GMR  where, G is the gravitation constant = 6.6743 x 10-11 m3 kg-1 s-2 ...

Q: What topographic feature is left behind at unreclaimed surface mines?

A:   Strip mining, a type of surface mining commonly used for coal and lignite mining. Abandoned or unr...

Q: What types of glacial deposits exist in Portage County ohio?

A:   Till is unsorted glacial sediment derived from the erosion and entrainment of material by the movi...

Q: Which exoplanet do you believe is most earth like?

A: Earth has the following characteristics an oval-shaped, elliptical orbit, the density of 5.5 g/cm3,...

Q: Name one glacier that lost area relatively consistently between 2008 and 2010. Explain How do you kn...

A: Helheim Glacier is one of the many glaciers on Greenland that have consistently lost area due to rap...

Q: Indicate the soil types to be expected in a glacial terminal moraine.

A:   Glacial moraines are made up of till. Till is an unsorted and unstratified rock material deposited...

Q: What types of biomes are found in the lowland area

A: Lowlands areas are characterized by low altitudes where temperatures and rainfall are high. At the e...

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A: The arthropods are eukaryotic animals belonging to the kingdom Animalia and phylum Arthropoda. Arthr...

Q: Sequence the statements below to show the order in which the information was presented in the passag...

A:   1. The definition of biotic factors is given. 2. Examples of biotic factors are given. 3. Interact...

Q: Why are some minerals considered to be gemstones or gems

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Q: Which is older the moon or the sun? How do you know?

A:   The solar system consisting of sun and planets formed about 4.56 billion years ago from a cloud of...

Q: Define extinction event and state how many have occurred thus far.

A: The extinction event is defined as the sudden demise of the species due to some catastrophic event o...

Q: Internet Search #7: The best sources of historical information concerning Earth's Atmosphere is from...

A:   The best sources of historical information concerning Earth's Atmosphere is from the Vostok and Do...

Q: fill the blank with the word 'cosmological redshift' or 'doppler shift'   The amount of a      ?    ...

A:   Each of the elements present in the periodic table emits photons at particular wavelengths which a...

Q: What explanation could scientists provide as to why the Himalayas are continuing to change

A: The rate at which the Himalayas are growing is about 1 cm per year as the Indian Plate continues to ...

Q: What major factor determines the future of the universe? Why?

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Q: Define random sampling. Why is it important to use a random sample? How else could randomness be app...

A: The finding or making inference statistically about the whole population of anything from the select...

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A: Hurricane is a kind of tropical cyclone having very high speed winds. It forms in warm waters, havin...

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A: Ireland is an island present in the North Atlantic Ocean. It lies on the continental shelf of the Eu...

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A: Step 1: Calculate the number of moles of ethanol  The molecular mass of ethanol = 46 g/mol moles of ...

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A:   During the accretionary stages of the earth's formation, it was chemically homogeneous throughout....

Q: Zebra mussel populations are growing explosively in the river systems of the central United States. ...

A: Zebra mussels populations have grown exponentially due to: Predators such as round goby, freshwater...