True or False: Lava cools so quickly that there are never any visible mineral grains in it. True False

Q: What happened during Earth's "Dark Age," or the first 500 million years after it formed?

A: In geological timescale, the time from 4.6-4.0 billion years is considered Hadean, which means it's ...

Q: Define Environment

A: Environment essentially is referred to anything that surrounds us. It can also be referred to as 'su...

Q: Some people have suggested that we could find room for an exponentially growing human population by ...

A: Continue exponential growth in the human population is a severe issue that humankind is about to fac...

Q: parallax," astronomers determined e is 0.00001389 degrees. NOT TO SCALE Sun star Earth 6a. How far a...

A: One astronomical unit is defined as the mean distance between the sun and the Earth, which is 150 mi...

Q: How do reefs of middle Paleozoic age illustrate ecological succession?

A: From a Geological perspective, a reef is a rock made up of dead organism's skeletal material in the ...

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: Roadways are commonly cut into the bases of slopes. When mass movements block the road, the debris i...

A: Everywhere on the earth's surface, materials depend upon the attraction force. This force of gravity...

Q: Sydney and Valparaiso are the same distance from the equator and both are near the ocean. Is Valpara...

A: When the weather pattern over a region is tracked for at least 30 years, we estimate the mean trend ...

Q: How can chlorofluorocarbons (CFCs) be used as such tracers? Would CFC-based methods be equally suita...

A: Tracers can give information about ocean circulation and its variability. 

Q: How do fluid flow and transport affect the human environment?

A: Fluid flow and transport influence the occurrence of many of Earth’s most valuable resources. It he...

Q: What conditions favor the preservation of soft parts as fossils within sediment.

A: The actual remain or indirect evidence of a prehistoric life preserved within a rock under natural c...

Q: Given rainfall amounts as so, Hour 1: 0.75 cm, Hour 2: 1 cm, Hour 3: 2 cm, Hour 4: 1 cm, Hour 5: 2 c...

A: In the given Hydrograph, the rate of change of infiltration capacity with respect to time is shown. ...

Q: Option 3 was excluded in question 1

A: Even though Option 2 is the most environmental friendly, however since the heating time is 5 minutes...

Q: A 100 cubic centimeter soil sample is saturated.  The water content Vw is 45 cubic centimeters.  Wha...

A: The volume of the pore spaces in a rock refers to the soil porosity. The volume of the pore is the r...

Q: Which radioactive isotope or isotopes would you use to date each of thefollowing objects? Explain ea...

A: Radiometric dating is the process of using radioactive isotopes to date the events of the past. Thus...

Q: P2.16 Develop 15 ways to determine which direction is north. Provide descriptions and/or sketches of...

A: finding the growth pattern of mosses, it usually grows in the north. Observing the position of spyde...

Q: The nuclear industry is placing ads in popular magazines and newspapers claiming that nuclear power ...

A: Nuclear Energy In the production nuclear energy or electricity, the radioactive fuels such as uraniu...