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Earth Sciences
Earth Sciences is the study of the Earth in terms of Geography, Geology, Geophysics, etc. It combines the use of Sciences such as Biology, Chemistry, Physics and Mathematics to understand the Earth System.
34,763 Questions
What is save the earth movement?
The "save the earth" movement refers to global efforts to protect and preserve the environment in order to prevent further damage to the earth's ecosystems. It involves initiatives and campaigns aimed at reducing pollution, conserving natural resources, and promoting sustainable practices to combat climate change and biodiversity loss.
Is it true that earth looks the same today as it did millions of years ago?
No, Earth's surface has undergone significant changes over millions of years due to geological processes like plate tectonics, erosion, and volcanic activity. Continents have shifted, mountains have formed and eroded, and the climate has fluctuated, leading to a constantly changing landscape.
What is The layer of the earth's atmosphere closest to the earth surface?
The stratosphere (about 10 to 50 km altitude) is above the lowest level, the troposphere, and is separated from it by the tropopause. (see related question)
What is a word that means study of earth?
Geology is the primary earth science and means "study of the earth"
Horizontal layers of soil What is the answer?
Horizontal layers of soil are called soil horizons, which are distinct layers that form as a result of different processes happening within the soil over time. These horizons are identified based on differences in color, texture, structure, and composition.
What agent of erosion most likely produced this valley's shape?
When the glacier is moving down the side of the valley it scrapes of the rocks. The grinding changes the shape of the valley so that it is rounded.
Why do different areas of Earth receive different amounts of solar radiation?
Different areas of Earth receive different amounts of solar radiation due to the angle at which sunlight strikes the Earth's surface. The equator receives more direct sunlight as the sun's rays are more perpendicular, leading to higher solar radiation at the equator. Areas closer to the poles receive less direct sunlight as the rays are more spread out, resulting in lower solar radiation.
What group was samarium found in?
The family that samarium belongs to is known as the Lathanide family. This family consists of 15 metals also known as the rare earth metals.
Is a beach erosion or deposition?
A beach can experience both erosion and deposition. Erosion occurs when waves and currents remove sand from the beach, while deposition happens when sand is added to the beach from sources like rivers or offshore sediment. The balance between erosion and deposition can fluctuate over time due to factors like weather, tides, and human activities.
What element is a member of the boron family and is the most abundant metal in the earth's surface?
Aluminum is a member of the boron family and is the most abundant metal in the Earth's crust.
How does most heat transfer in the atmosphere in the ocean and in earth's interior occur?
In the atmosphere, heat transfer mainly occurs through convection, as warmer air rises and cooler air sinks. In the ocean, heat transfer also primarily happens through convection currents, where warmer water rises and cooler water sinks. In Earth's interior, heat transfer occurs primarily through conduction, as heat moves from the core to the mantle and crust.
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What type of volcano is Mount Mahuja?
Mount Mahuja is a stratovolcano, also known as a composite volcano. These are characterized by their steep-sided symmetrical cones and explosive eruptions due to the high viscosity of the magma. They typically alternate between explosive and effusive eruptions.
Why does Earth have uneven heating from the Sun?
There are two reasons: the angle of insolation and the albedo of the surface.*
The Earth's surface is curved, so that while one area receives the sunlight perpendicularly to the surface, other areas (notably higher latitudes) receive the sunlight at an angle. Not only does this increase refraction, but also scattering, because the sunlight travels through a greater volume of air on the way to the surface.
The albedo is the relative reflectivity of an area of the Earth's surface, or of cloud layers covering the surface. The higher the reflectivity, or the greater the cloud cover, the less solar warming of the surface. However, clouds at night can also trap infrared radiation re-rediated by the Earth, in some cases compensating for the reduced solar heating. (In the worst case scenario, daytime clouds would block the sunlight, then dissipate at night.)
Ice and snow are more reflective than other surfaces such as rocks, trees, and buildings, so winter sunlight provides even less heating when temperatures are very low and there is more snow on the ground.
* Water surfaces absorb more heat than land surfaces. But this is less a case of uneven heating than uneven absorption.
Where does the lighter sediments deposited?
Lighter sediments are typically deposited closer to the source of the eroded material, such as near river mouths or in low-energy environments like lakes or offshore areas. These sediments tend to settle out first due to their smaller size and lower density compared to heavier sediments.
Of all the fresh water available how much of it ready for use by humans?
Only about 1% of the Earth's freshwater is readily accessible for human use, with the majority of the remaining freshwater locked up in ice caps, glaciers, and deep underground aquifers. It is important to manage this limited resource sustainably to ensure its availability for future generations.
Alfred Wegener and others noticed that the shapes of continents seemed to fit together like pieces of a jigsaw puzzle, similar fossils and rock formations appeared on different continents, and evidence of past climates that were not possible in current locations. These observations led them to hypothesize that the continents had moved over time, which eventually became the theory of plate tectonics.
How much of Suns energy is absorbed by earths hydrosphere?
Roughly 3% of the Sun's energy that reaches the Earth is absorbed by the hydrosphere. This energy plays a crucial role in driving processes like evaporation, which fuel the water cycle that is essential for the Earth's climate system.
How much of the Suns energy is absorbed by earth's geosphere?
Less than 1% of the Sun's energy is absorbed by Earth's geosphere. The majority of the Sun's energy is absorbed by the atmosphere and surface of the Earth.
I'm not certain what you're referring to with "horn deposition." Can you please provide more context or clarification so I can better assist you?
What percent if earths water is in glacial ice?
About 69% of Earth's fresh water is stored in glaciers and ice caps.
Why cant sea salt be separated from sea water by filteration?
Sea salt cannot be separated from sea water by filtration because sea salt is dissolved in the water at a molecular level, meaning the particles are too small to be trapped by a filter. Filtration is only effective for separating solid particles from liquids when the particle size is large enough to be caught by the filter.
How do sediments move downstream?
Sediments move downstream through processes like erosion, transportation, and deposition by the force of water, wind, or ice. As water flows, it picks up and carries sediments, gradually depositing them as the energy of the water decreases. This continuous cycle of erosion, transportation, and deposition allows sediments to be transported downstream over time.
What are the two most common elements which make up the crust?
The two most common elements in Earth's crust are oxygen and silicon. Oxygen makes up about 46% of the Earth's crust by weight, while silicon makes up about 28%.
