Why are humic substances and humus no longer viewed as being representative of organic compounds in soils?

Q: Suppose there are 10000.0 civilizations broadcasting radio signals in the Milky Way Galaxy at the mo...

A: Number of stars in the milky way galaxy= 9×1011 Number of civilizations broadcasting radio signals  ...

Q: Wave-swept beaches are subjected to the same conditions as the intertidal community but support vast...

A: The wave swept beaches are part of the shore where sediments swept away under the influence of waves...

Q: The FeAl intermetallic phase Is an BCC structure with Fe atoms at the corner and Al atoms at the bod...

A: The BCC unit cell is constructed keeping Fe atoms at each corner and Al atom at body-centered. Then ...

Q: Explain the wide annual range of temperatures in Siberia?

A: Siberia is a vast continental region of Asia, situated in Russia. The extensive continental region i...

Q: On June 21-22 are the Sun’s noon rays directly overhead at the Tropic of Cancer, the equator or the ...

A: A solstice is a day when the sun reaches its maximum and minimum declination. It marks the days with...

Q: Area A Is located close to a volcanic vent, but area B is far away. What Is the expected distributio...

A: Volcanoes are the geologic features from which the hot magma erupts in the form of lava from the int...

Q: The difference in heat distribution between the poles and the equator is due to Earth’s a. orbit aro...

A: The Equator is the imaginary line on the surface of a rotating sphere, passing through the center of...

Q: Where are most atolls and guyots found?

A: An atoll is a coral reef, surrounding a lagoon. It is a ring shaped island or a series of islets. A ...

Q: Earth Science Question

A: The Earth's interior is differentiated into the crust, mantle, outer core, and inner core.   Disclai...

Q: List as many differences as you can between the Archean world and the world as it existed 1 billion ...

A: Archean Eon ranges from 4 Billion years to 2.5 billion years. There is Era in Archean eon, Eoarchean...

Q: Which statement describes the relationship between minerals and rocks?a). Minerals and rocks are the...

A: Rocks are naturally occurring materials in the Earth and on the Earth's surface. Rocks are essential...

Q: Explain why the entire pattern of isotherms has a more northerly location on the July map than on th...

A: Isotherms are the lines joined on the map with similar temperature. It is used to demonstrate the te...

Q: At sea level, the normal percentage of carbon dioxide (CO2 ) in the atmosphere isA. 5% C. 78%B. 40% ...

A: Carbon dioxide is considered a form of gas in the air because it is much smaller than oxygen or nitr...

Q: Why does the coolest temperature of the day occur about sunrise?

A: The heating of Earth is by solar radiation. The solar radiation gets trapped in the atmosphere and b...

Q: How would the shutdown of the North Atlantic Bottom Water formation affect carbon dioxide concentrat...

A: The temperature at the surface and in the layer of about 500 m depth of ocean is around 10°C. But at...

Q: 7. The photographs below shows two depositional features labeled A and B. Which terms correctly iden...

A: Delta is a discrete shoreline protrusion formed at a point where a river enters an ocean or other bo...

Q: Approximately how many asteroids that are 1.05 km in radius would it take to make a planet which has...

A: Given, Radius of asteroid= Ra= 1.05 km Therefore, Volume of asteroid= Va=43πRa3     =43π×1.053⇒Va=4....

Q: Explain how shifts in weather patterns (changes in circulation of atmosphere and oceans) produce the...

A: Thee masses of water in the ocean that flows from one place to another place is termed ocean current...