1- The crystal system . - (α.β.Χ.-90.) 2-The optical properties of minerals are---, 3-The hardness of window glass is

Q: Seismic velocity of materials depends upon the elastic moduli of the material. An elastic modulus is...

A: The velocity of a seismic wave is the speed at which it propagates through a medium The velocity usu...

Q: 18. Given the truth table of a conjunction, then the values of a and b respectively are: P PAQ T T T...

A: In subject of maths logic truth table is chart which have row and column in it which show truth valu...

Q: Assume that there are two moons in orbit around Earth that are on the same orbital plane but always ...

A: Moon and Sun,s gravitational pull causes the bulging  of ocean water creates tides of different magn...

Q: what is greenhouse?

A: The concept of the greenhouse is being used since roman times. Later the scientific understanding of...

Q: How different are the exposure to flood hazard of people from cities in developed countries and peop...

A: Flood is a natural hazard in which an overflow of water in natural dry region can happen, this overf...

Q: Hurricanes build over warm ocean waters. What else has to be present for a hurricane to form?

A: A circular storm that originates over warm tropical oceans is known as a tropical cyclone. A hurrica...

Q: What twilight is best for viewing the heavenly observations by sky gazers and astronomers?     ...

A: The twilight is the illuminance of the lower part of the atmosphere when the sun is situated below t...

Q: In your own words what is a Geologic time scale? *

A: According to law of superposition in sequence of layers of sedimentary rock the oldest layer at the ...

Q: Gale strength, northerly winds blow at 25 m/s over the sea area at 55 ° C. Calculate the horizontal ...

A: The formula for density of air is given by ρ=pRT  → eq 1   where p= absolute pressure= 101320 Pa R= ...

Q: What are some negative environmental factors that could inhibit the development of ocean wave power ...

A: Firstly let us discuss something about ocean wave power systems, In this power system, we capture th...

Q: A cylindrical specimen of in situ rock has a diameter of 3.8 cm, height of 7.6 cm and mass of 174.2 ...

A: Density of a substance is mass per volume the average desity is given by total mass divided by its t...

Q: One of the statements is false about the Big Bang:  a. ridiculed by scientist Fred Hoyle b. the firs...

A: Universe is all the space and time and all of its content which include galaxies, stars, planets, co...

Q: Define the relation of internal forces and earth quake in detail consider the course ?

A: Earthquake is a vibration or oscillation of the surface of the earth caused by elastic nature of roc...

Q: Question-based on, "caldera".    Make an arrow to them. -find the floor of the caldera -the steep sl...

A: Caldera are large hallow type shaped which are formed after all the magma from magma chamber has emp...

Q: What is meant by base level?

A: A stream is a body of water which flow on the earth surface. smaller stream often merge  larger stre...

Q: Earth Science Question

A: The evolutionary mechanism reveals the pre-occupational transition of genetic elements in a living p...

Q: Which rock is the oldest?

A: Rocks are naturally occurring aggregates of minerals. There are 3 types of rocks, igneous, metamorph...

Q: discuss the importance of plants to life on Earth.

A: Earth is the third planet in the Solar system. And it is the only planet found so far that can susta...

Q: Acoustic impedance, involving _______, is a compound parameter that can be used to describe the effi...

A: Acoustic impedance is a physical property of the rock. It is product of seismic velocity and density...

Q: Is it possible that diamond and graphite to have similar characteristics

A: Graphite and diamonds are chemically similar - both contain carbon (C), but physically, they are ver...

Q: discuss the carbon cycle.

A: Carbon is the basis of all life on Earth, needed to build complex molecules like proteins and DNA. T...

Q: Describe the role of field crop production in national food security.   Plz short answer.

A: Crop production is the production of crops for domestic or commercial purposes. Some primarily produ...

Q: If your plane has landed at some unfamiliar place on Earth at noon on March 21st, and you realize th...

A: The Earth is the third planet in the solar system. It rotates on its axis and revolves around the Su...

Q: Specify differences between these two astronomical cycles that occurs simultaneously: the 27-and-a-h...

A: The solar system comprises eight planets revolving around the Sun on their fixed orbital path. It al...

Q: What types of archaea have been detected in soils?

A: The upper layer of terrestrial plain consists of organic material, minerals, water, organisms (or th...

Q: PART A: Several years ago, hurricane Gilbert destroyed thousands of acres of banana in Jamaica. Farm...

A: Hurricane Gilbert was the strongest hurricane that ever took place. It took place in the year 1988 o...

Q: What is mass extinction

A: The Earth, since its formation, has undergone several changes in its atmospheric composition, hydros...

Q: A cold, dry air mass collides with a warm, humid air mass over the land. The warm air mass is forced...

A: An air mass is an extensive portion of the atmosphere whose physical properties, especially temperat...

Q: For storm surge hazard, which is more important to minimize, a building's exposure of it's vulnerabi...

A: Apart from the anthropogenic activities, there are various natural calamities or hazards that damage...

Q: Question-based on, "unconformity".   I have tried it but no correct so far.   Please be clear.

A: An unconformity can be explained as a period of erosion or non-deposition. It should not be mistaken...

Q: How can urbanization embrace self-sustainable cities, especially as rural to urban migration pattern...

A: Urban areas are those areas that are developed in infrastructure, transportation, and the population...

Q: “Seismic reflections can occur when only when there is a change in seismic velocity”. (This is a Rig...

A: Seismic Reflection is one of the important methods in the geophysical survey to estimate the earth's...

Q: Hello, can you help me with this question? Thank you.

A: First, let's discuss about acid rain Rain or precipitation i.e. unusually acidic is called as acid r...

Q: Which of the following is made of the densest material?     Mercury     the Moon     the...

A: The solar system planets are made mainly of three elements: iron, silicate rock, and water ice. They...

Q: Assume that the earth is represented by a horizontal layer overlying a half-space. A simplest refrac...

A: Principle of seismic refraction survey is based on Snell’s law of refraction. This method is used to...

Q: A compressional wave…a. Is also called an S-wave.b. Can travel only through solids.c. Depends on den...

A: The occurrence of immediate shaking of the planetary surface recognizes as the phenomenon of an eart...

Q: Specify some negative environmental factors that might inhibit the development of large offshore win...

A: Offshore wind farms have offshore wind farms to harvest wind energy as higher amounts of wind energy...

Q: 1. What is the difference between Open skies agreement and Bilateral air service agreement?

A: In 1944 at the closure of world war II , 54 countries came together in Chicago, USA. to discuss the ...

Q: Q2: Convert the following bearing angles to azimuth, and vice versa: 1- N 41.5° W 2- 127.7°

A: Azimuths are defined as the horizontal angles measured in the clockwise direction from the reference...

Q: Notice that you can see nearly all the bones as well as a little bit of scaly skin in this image of ...

A: Fossil are remained preserved part of animals and plant which are buried in sediment and harden, sof...

Q: 13. Which of these is a disadvantage to wind power? A. it is renewable B. it is nonrenewable C. it c...

A: Energy is an important factor for human civilization. Human beings have tried to produce energy from...

Q: From the following 3 area which is most vulnerable to a rise in sea level? Order from most vulnerabl...

A: The region of Netherlands from Rotterdam to Amsterdam is a a part of a large delta crosscut by three...

Q: b. What is the significance of the Schmidt hammer? Describe how it is used for taking measurement in...

A: An elastic property in an elastic module is a measure of quantity of an object or a substance like r...

Q: What areas of the U.S. are most impacted by smog and other air quality issues?  Is VT ever impacted?

A: Pollution is introduction of harmful material in the environment which can deteriorate various natur...

Q: Q3: From the below contour map answer the following question: 1- What is the highest possible elevat...

A: The above image represents a contour map of intervals 5 meters. The term contour is defined as a lin...

Q: Which latitude will have the most hours of daylight onthe summer solstice?a. 0° (the equator) c. 45°...

A: The date of occurrence of the summer solstice in the northern half of the earth is on June 21 or Jun...

Q: What is the name given to a grouping of stars that form a simple shape?     galaxy       c...

A: A star is an astronomical object consisting of a bright plasma spheroid kept together by its force. ...

Q: How is the quantity of light affected by a plant’s location relative to the equator or the poles? On...

A: The Earth revolves around the Sun on its fixed elliptical orbit. The axis of the Earth is tilted, wh...

Q: Radiation fog type is a type of fog that forms

A: Fog is defined as visible aerosols consisting of tiny water droplets or ice crystals suspended in th...

Q: barite mineral is included in the formation of

A: The mineral barite is also termed heavy spar.  Composition: BaSO4 Crystal system: Orthorhombic Commo...