Rocks Specific Gravity of Solids, Gs Unit Porosity, n Ultrasonic Elastic Permeability Hardness Plasticity Density Weight, y Velocities Modulus (Vp and V s) 1. gneiss 2. phyllite 3. schist 7 4. slate

Q: Rock types and the Rock CycleMatch the following statements on the left with the answers on the righ...

A: A. Extrusive igneous rocks are rocks currently being formed from cooling lava in Hawaiian active vol...

Q: What average speed, in centimeters/year has the Pacific plate been moving for the past 5 million yea...

A:   As location of hotspot remains fixed relative to plate motion and also Hawaiian big island is loca...

Q: What will happen if we run out of water? How we could minimise the impact?

A:   Water is used for drinking, washing, hydrating crops, livestock, harnessing electricity and variou...

Q: What are typical frequencies for 1-story buildings? 10-story? 30-story?

A: The frequency of a building is the number of times the building moves side to side (in a back and fo...

Q: Contrast the differences between basaltic and rhyolitic magma in terms of SiO2 percentage, weight % ...

A: In Basaltic magma, SiO2 is 45-55 wt% and high in Fe, Mg, Ca, low in K, Na. In Rhyolitic magma, SiO2 ...

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...

Q: For how long has the Pacific plate been moving in the same general direction (northwest)?

A: The Pacific Plate is moving northwest at a rate of 7-11 centimeters per year. As the plate continues...

Q: Why are fires in cities so commonly associated with major earthquakes?

A: Fires are a recognized hazard associated with earthquakes, especially in cities and industrial areas...

Q: Write a news story in about 100 to 150 words.Make sure you use time words also - before, after, when...

A:   COVID-19 has spread very fastly throughout the world in the last 6 months. COVID-19 flu has occurr...

Q: What is the Alvarez Asteroid Theory

A: It is always a concern of study about the sudden demise of Dinosaurs. There are many schools of thou...

Q: What general direction was the Pacific plate moving between 70.7 and 43.4 million yearsago?

A: As soon as the subduction started, the shifting of the subduction zone started, and it started movin...

Q: Assume we are looking at a river/creek valley that contains ancient meanders. These ancient meanders...

A: The meandering of the river occurs in the old stage. In the meander, erosion occurs in the outer cur...

Q: Counting atoms assessment NaOH How many total atoms are there in the formula

A:   In the compound NaOH, there is Na, O, and H element. If there is no subscript shown with an elemen...

Q: How far can a pyroclastic flow travel over water and still be hot enough to kill people?

A: A pyroclastic flow is a flow or explosion of magma composed of pyroclasts which are solid pieces of ...

Q: Explain the paleomagnetic evidence for seafloor spreading.

A: According to seafloor spreading, mid-ocean ridges are located in areas where mantle-derived convecti...

Q: Where does the rock cycle start? a. crystallization of molten magma b. deposition of sediment c. me...

A: The three types of rocks - igneous, sedimentary and metamorphic - all can evolve from one another in...

Q: 3. The velocity of sound in water is approximately 1,500 m/s. Calculate the depth from sea level to ...

A:   The sound velocity in water medium is about 1,500 m/s. Since the sound echo traveled to the bottom...

Q: Which of the following is an example of map generalization? a. Removing some points from lines repr...

A: The process of map generalization involves simplifying the geographical information represented in a...

Q: Could the Moon retain a nitrogen atmosphere like the Earth’s, if such an atmosphere was suddenly gen...

A:   In comparison to planets that have atmosphere, the moon is small in size and have less mass than r...

Q: The Historical Significance of Sedimentary RockMatch the following statements on the left with the a...

A: B. Rounding is evidence of clasts that have been carried a long distance.  

Q: d Ridge plantng Which of the following sot of vegetables are directly planted in the field? a Eogpia...

A: Answer to Question 1 C. Hill-planting

Q: What statements are TRUE for a parcel of air that is in hydrostatic balance. Hint: there is more tha...

A: Hydrostatic balance describes the equilibrium between the downward directed force of gravity and upw...

Q: If gas escapes easily from a magma, will the eruption be peaceful or explosive? If gas cannot escape...

A: Gas gives magmas their explosive character because the gas expands as pressure is reduced. Explosive...

Q: How can you determine which lines are absorption lines in a spectrum plot?

A:   Absorption lines are dark lines, or lines of reduced intensity, in a continuous photographic spect...

Q: Explain what a seiche is. How could you create a small one?

A: A seiche is a hydrological phenomenon occur in a fully closed or partially closed water body as a st...

Q: Why do people keep returning to a volcano, such as Vesuvius, and building new cities?

A: People live near volcanoes despite the risks of an eruption. Living in cities near volcanoes can pro...

Q: Could life have developed without oxygen?

A: The planet earth developed approximately 4.5 billion years ago, and life originated on the earth app...

Q: What does the sweeping beam of a light house have in common with a neutron sta Include an explanatio...

A:   The rotating neutron star acts similar to lighthouse. Its beam sweeps in a circle and gives a puls...

Q: What are the physical properties of soil? And what are the importance of physical properties for cro...

A:   Soil texture Soil texture is based upon the relative percentages of soil particles such as sand, s...

Q: North America, Greenland and Eurasia fit quite well together in reconstructing Laurasia, but there i...

A:   Iceland was formed at a Hotspot located on mid-Atlantic ridges from the magma rising through hot m...

Q: If water was to become warmer in the ocean, how would that impact climate?

A: Warming of the ocean results in an overall increase in the sea surface temperature - the temperature...