What is the cleavage of emerald?
Emerald has poor cleavage. It typically fractures in a conchoidal or irregular manner rather than along smooth, distinct planes like some other gemstones.
In what forms does water exist in the atmosphere?
Clouds are water vapor. they float in the atmosphere until they precipitate ( let go rain or snow, etc) They move along with the wind, as they float in the atmosphere. Let us not fog things further, Fog is cloud mater, very diffuse at ground or low level and tends towards Grey color.
What is the temperature of the interior of the earth at a depth of 1000 km?
At a depth of 1000 km below the surface, the temperature of the Earth's interior is estimated to be around 1200-1400 degrees Celsius. This heat is generated by the Earth's core and is a result of radioactive decay and residual heat from the planet's formation.
How did the solstice affect people?
The solstice has historically been a significant event in many cultures as it marks the longest or shortest day of the year, influencing agricultural practices, religious rituals, and celebrations. It can impact people by affecting their daily routines, traditional customs, and spiritual beliefs.
How does wind change the earth?
Wind can change the Earth by causing erosion through the transport of sediment and the wearing down of rocks. Wind can also redistribute heat and moisture around the planet, influencing climate patterns and weather systems. Additionally, strong winds can cause damage to landscapes and structures through their sheer force.
Density is the characteristic used in the identification of solids that involves measuring mass and volume. Density is calculated by dividing an object's mass by its volume, providing a unique value that can help identify different types of solids.
What is the use of indigo plant leaves?
Indigo plant leaves are used to extract a blue dye that is used for coloring textiles. The dye extracted from the leaves is known for its rich blue color and has been used for centuries in traditional textile dyeing processes.
What is the difference between opaque and translucent?
OPAQUE means light transmission is blocked; essentially zero light transmission. A steel plate is opaque. A black piece of cardboard is opaque.
TRANSLUCENT means some light gets through but it is scattered in passage so images do not get through. A frosted glass sheet is translucent. Shower curtains are often translucent.
How do the wavelengths absorbed by the cans differ from the wavelengths radiated from the cans?
The wavelength radiated from the cans are shorter than the ones absorbed. This is because the intensity is less than before. Take for example a bouncing rubber ball. When you drop the ball from a certain height, it bounces back, but lower than before because there is less energy.
What is determined by the earth's revolution and angle of tilt?
The Earth's revolution around the Sun determines the length of the year and the changing seasons. The angle of tilt (23.5 degrees) causes different parts of the Earth to receive varying amounts of sunlight, leading to the seasonal changes.
Thick deposits of wind blown fine grained sediments?
These are likely loess deposits, formed from the accumulation of fine particles like silt and clay that have been carried by the wind from a distant source and then deposited over a wide area. Loess deposits are typically thick, homogeneous, and can be found in locations with strong prevailing winds and limited vegetation cover.
What is the depth of the continental rise?
The depth of the continental rise typically ranges from 3,300 to 13,200 feet (1,000 to 4,000 meters). It marks the boundary between the continental slope and the deep ocean floor, where sediment from the continent accumulates.
Frost wedging is an example of what?
Frost wedging is a type of physical weathering caused by repeated freezing and thawing of water in cracks of rocks. The expansion of water as it freezes helps to break apart the rock into smaller pieces over time.
What could gas hydrates be used for?
Gas hydrates can potentially be used as a source of energy due to their high methane content. They can also be studied to understand their role in the global carbon cycle and as a potential way to store carbon dioxide. Additionally, gas hydrates have the potential to be used in gas separation processes.
Isostasy (Greek ísos "equal", stásis "standstill") is a term used in geology to refer to the state of gravitational equilibrium between the earth's lithosphere and asthenosphere such that the tectonic plates "float" at an elevation which depends on their thickness and density. This concept is invoked to explain how different topographic heights can exist at the Earth's surface. When a certain area of lithosphere reaches the state of Isostasy, it is said to be in isostatic equilibrium. Isostasy is not a process that upsets equilibrium, but rather one which restores it (a negative feedback). It is generally accepted that the earth is a dynamic system that responds to loads in many different ways, however Isostasy provides an important 'view' of the processes that are actually happening. Nevertheless, certain areas (such as the Himalayas) are not in isostatic equilibrium, which has forced researchers to identify other reasons to explain their topographic heights (in the case of the Himalayas, by proposing that their elevation is being "propped-up" by the force of the impacting Indian plate).
In the simplest example, Isostasy is the principle of buoyancy observed by Archimedes in his bath, where he saw that when an object was immersed, an amount of water equal in volume to that of the object was displaced. On a geological scale, isostasy can be observed where the Earth's strong lithosphere exerts stress on the weaker Asthenosphere which, over geological time flows laterally such that the load of the lithosphere is accommodated by height adjustments.
Source: http://en.wikipedia.org/wiki/IsostasyBy: Joshua R. LigadWhat three characteristic of the mesosphere?
The layer of Earthâ??s atmosphere that lies directly above the stratopause and below the menopause is known as the mesosphere. There are many characteristics of this area including the fact that the temperature decreases when the altitude increases. These temperatures can fall as low as negative 100 degrees Celsius. There are strong winds found in the mesosphere as well as atmospheric tides, internal atmospheric gravity waves, and planetary waves. You will also find noctilucent clouds in the mesosphere.
How difficult it is to slow down or stop an object?
The difficulty of slowing down or stopping an object depends on various factors such as the object's mass, speed, and the force applied. Generally, it can be more challenging to slow down or stop an object that is heavier or moving faster. Adequate braking distance is important to safely slow down or stop an object to avoid accidents.
What are the internal processes that produce energy from stars?
Energy is released by fusion of elements to heavier elements, i.e. fusion of hydrogen to helium in the sun's core.
I'm not sure what you mean by the 'composition of elements', but the hydrogen that our sun, like billions of other main sequence stars, is fusing right now is the leftover hydrogen from the Big Bang which, in billions of years' time, will eventually run out, and stars will have to fuse heavier elements, going up to iron (which means the universe will, eventually, die).
Bigger stars than the sun do fuse heavier elements, in 'layers', with the heaviest (Fe) in the middle, and the lightest (H) at the surface (look up onion structure star).
Why are diamonds only found in certain regions of the world?
Diamonds are typically found in regions with specific geological conditions, such as old volcanic pipes or cratons where the high pressure and temperature necessary for diamond formation can occur. These conditions are not common worldwide, so diamonds are only found in certain areas where these geological processes have taken place.
What layer of atmosphere extends 50 - 85 km above earth's surface?
What percent of the earth is the lithosphere?
The lithosphere makes up about 0.1% of the Earth's total volume. It is the outermost layer of the Earth, consisting of the crust and upper part of the mantle.
What would happen if the cordgrass disappeared?
If cordgrass were to disappear, it would disrupt the ecosystem as it serves as a critical habitat and food source for various organisms. This could lead to a decline in biodiversity, affecting the overall health of the ecosystem. Additionally, the absence of cordgrass could also impact shoreline stability and coastal erosion.
What is the continuous movement of water between the earth's surface and the air?
The continuous movement of water between the earth's surface and the air is known as the water cycle. This cycle involves processes such as evaporation, condensation, precipitation, and transpiration, which contribute to the circulation of water in different forms throughout the environment.
Does earth's rotation cause land breezes or sea breezes?
Earth's rotation does not directly cause land breezes or sea breezes. Land breezes and sea breezes are caused by temperature differences between land and sea surfaces, which create differences in air pressure. During the day, land heats up faster than water, creating lower pressure over the land and higher pressure over the sea, leading to a sea breeze. At night, the land cools faster than water, creating higher pressure over the land and lower pressure over the sea, leading to a land breeze.