What causes the aurora (see photo below)? Chemical reactions among molecules in the Earth's atmosphere triggered by the appearance of sunspots Dispersion of radio waves from the Sun due to atmospheric free electrons The interaction of solar wind particles with the Earth's magnetic field Scattering of sunlight due to molecules in the Earth's atmosphere Magnetic reconnection events in the Earth's ionosphere What is the approximate effective density of a supermassive black hole of mass 10°M. ? Assume its radius is its event horizon. Impossible to know 0.000002g/cm 2,000, 000g/cm 2000g/cm³ 2g/cm

Q: Why do some springs emerge along the sideof a hill?

A: Given that, why do some springs along the side of a hill?

Q: differentiate among the great variety of different coastallandforms, and explain how they develop…

A: Given that, differentiation among the great variety of different coastal landforms, explain how they…

Q: Describe principles of classical and neoclassical economics,and summarize their implications for the…

A: Given that, Describe principles of classical and neoclassical economics, and summarize their…

Q: Part II: Directions: Arrange the following situations in sequence to describe how a volcano is…

A: Volcanic eruptions can contain each lava which flows over the surface, and fragmented events that…

Q: Mix and Match: Using Figure 1, match the units to their best matched features below. Rock Units…

A: solution

Q: Answer the ff.questions 1.Why Philippines is prone to typhoon? 2. Why some areas in the Philippines…

A: The Philippine is prone to typhoon because it is an island country covered by the ocean and also it…

Q: What might happen to the atoms that make upthe Earth long after the red-giant stage of Solar System…

A: In the universe, most of the stars are main sequence stars that convert Hydrogen into Helium through…

Q: . How do the shelf and slope of an active continental margin differfrom those of a passive margin?…

A: The given question is how do the shelf and slope of an active continental margin differ from those…

Q: • Why do you think gas planets are closer to the edge of the solar system while rocky planets are…

A: Part A The reason why the rocky plants formed near to sun was that the heavier material like…

Q: Pls help ASAP. Pls show all work.

A: New moon is when the sun and moon are aligned with the Earth and sun on opposite sides of the moon.…

Q: Assuming that the sediment making the bars in the photograph are clay and silt, it was transported…

A: Bed load are the particles in a flowing fluid that are transported along the stream bed. It moves by…

Q: What factors do geologists take into account when producing alandslide-potential map, and how can…

A: Landslide is an extremely widespread form of mass movement. In a pure slide, failure occurs along a…

Q: What landforms develop at submergentcoasts?

A: Landforms can be defined as the natural feature or artificial feature which are formed on the solid…

Q: Describe the process leading to the formation of caves and thespeleothems within caves

A: Rainwater travels through the soil and collects carbon dioxide, resulting in speleothems, also known…

Q: 10. In which direction is the cold front moving in the map below low? The warm front? Warfn hopt Cod…

A: The eastern United States is experiencing exceptionally warm weather due to a surge of warm, humid…

Q: b. Under TRIPS, there is no intellectual property rights protection for computer programs

A: Solution

Q: Gravitational potential energy

A: Solution

Q: A solar energy biofuels C hydroelectric energy D fossil fuels

A: Non-renewable resources are the resources that cannot be replenish themselves or they are limited in…

Q: "Earth's Rotation" "Earth's Revolution" "Describe the effects of this Earth's Motion" "Describe the…

A: Earths rotation and revolution are explained below.

Q: The Namib Desert lies to the north and west of the KalahariDesert, in southern Africa. The two…

A: Namib desert is located at the coast of Atlantic ocean and is in Africa. It meets the Kalahari…

Q: The equator divides the earth into two: O meridians O longitudes O poles O hemispheres

A: We know that earth has a shape of oblate spheroid which is developed due to rotation along the axis…

Q: Pls help ASAP. Pls show all work.

A: Solution

Q: Pls help ASAP. Pls show all work.

A: Stars are classified on the basis of relative strength of hydrogen lines in stars' atmosphere.…

Q: . Why do natural springs form?

A: Water on our planet makes us unique and different from other planets. Without the presence of water,…

Q: Describe / narrate what experiences will happen in planting a tree. How do you contextualize Pope…

A: Planting trees will please your mental health.

Q: how can biogas turn into energy that will benefit people and lessen their electrical bills?

A: Biogas is a combination of gases, fundamentally comprising of methane, carbon dioxide and hydrogen…

Q: what would be the best policy to safeguard our ecosystem?

A: Solution

Q: Tropical rain forests have soils that can be farmed with chemical fertilizers, managerial skills,…

A: The tropical rain forest soil is iron oxide and aluminium oxide rich. But due to raining around the…

Q: Imagine that you have been asked by the World Bank todetermine whether it makes sense to build a dam…

A: No, I would not, because many risks are there.

Q: What processes control the rise and fall of sea level on theEarth?

A: Transgression:  The movement of coastline toward land because of relative upward push in the sea…

Q: 3) Place a checkmark next to all of the hazards you'll encounter climbing Mt. Everest. Extremely low…

A: Solution -  true

Q: How can urbanization change the discharge ofa stream?

A: Urbanization can be explained as rapid growth in the urban areas and rural areas experiencing shifts…

Q: Cite one common issue in the Philippines and provide possible resolution to address such issue. Can…

A: The Philippines, a country of more than 70 million people and with a relatively high population…

Q: Mix and Match: Using Figure 1, match the units to their best matched features below. Rock Units SETS…

A: There are 3 types of rocks igneous, sedimentary, and metamorphic rock. These rocks are…

Q: The mirror for the Hubble Space Telescope has a diameter slightly larger than the height of a tall…

A: Hubble Space Telescope is one of the largest and most versatile and renowned space telescope which…

Q: provide examples of nonmetallic resources and their origins.

A: Non-metallic resources are mined for their commercial value.

Q: What is a thermocline, and why does it form?

A: The thermocline is an oceanic water layer in which the temperature of the water drops rapidly as…

Q: What events can cause catastrophic change in the EarthSystem?

A: Catastrophic change in the earth system influences sudden disasters which impact the biodiversity of…

Q: Describe the mechanisms that enable glaciers to move, andexplain why glaciers move. Why do crevasses…

A: Geomorphology is the study of landforms , their process of formation, form and sediments at the…

Q: Questions: Which of the following has the most heavily crated surface?  a.) Mercury  b.) Venus…

A: Our solar system has different types of planets, moons, and asteroid belts. Asteroid belts are…

Q: produce a sketch showing how hot springs originate.

A: Spring with water at temperatures significantly higher than the air temperature of the encompassing…

Q: How can ground shaking cause fairly solid layers of sand or mudto become weak slurries capable of…

A: The rockmass moving under the influence of gravity on slopes is termed "mass wasting." It is…

Q: How does the rate of groundwater flow compare with that ofmoving ocean water or river currents?

A: 97% of the total water on the Earth is stored in the Ocean. The rest, 3%, are freshwater.…

Q: UNIQUE VALUE PROPOSITION PROBLEM SOLUTION UNFAIR ADVANTAGE CUSTOMER SEGMENTS Is the customer segment…

A: 1-PROBLEM:-  The problem box in lean canvas was created to list one to three high priority problems…

Q: The number of types of satellites, among which are the most used?

A: Given that, The number of types of satellites and which are used among the most. There are different…

Q: Describe the process of cliff (scarp) retreat and the landformsthat result from it.

A: Mass movement and stream erosion cause a scarp or the side of a hill or mountain to gradually…

Q: Discuss the variety of phenomena that can cause a stable slopeto become so unstable that it fails.

A: Worldwide, the mountainous regions are habitated by humans for the purposes of relocation, tourism,…

Q: Explain the ways in which desert winds transport sediment

A: Desert ecology is the study of interaction between abiotic components( non-living features) and…

Q: How does a glacier transform a V-shaped valley into a U-shapedvalley? Discuss how hanging valleys…

A: Glaciers form erosional features in the highland areas. They erode either by Plucking or Abrasion.…

Q: describe evidence showing that glaciers covered large areas ofcontinents during the Pleistocene Ice…

A: The Pleistocene epoch encompasses the last ice age, during which glaciers blanketed vast swaths of…