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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 the earth wire for in a plug?

In the USA we call it the ground. If there is a cross in the wires from hot to common the ground or earth wire will give the electricity an easier path to the ground instead of going through a live person. The earth is attached in the main box to a copper rod hammered into the ground. This makes it easier for electricity to get to the ground.

What are the top 5 natural resources?

The top 5 natural resources are: water, forests, minerals (such as coal, oil, and natural gas), land, and biodiversity (including plants and animals). These resources are essential for supporting life on Earth and for human development.

What is the parent rock of marble and how can we test it?

The parent rock of marble can be composed of calcite or dolomite. Thus, it can be one of several rock types, often limestone (though it can conceivably also be dolomite or travertine, etc.). Limestone is considered to be the most common parent rock of marble. Since it is composed of calcite, it can be tested with dilute hydrochloric acid. If it bubbles, it is composed of calcite, and is probably marble.

What organisms make up the biological communities of the benthic realm?

The benthic realm is home to a variety of organisms, including bacteria, fungi, algae, mollusks, crustaceans, and echinoderms. These organisms play essential roles in nutrient cycling, decomposition, and maintaining biodiversity in marine ecosystems.

When the reactants get colder in an endothermic reaction what has happened to the heat energy?

Endothermic reaction means reactions which absorbs heat energy to carry out reaction. So if the reactants are at colder condition, process/operation require much more heat energy,ie, heat energy consumption will be more.

What objects use pressure?

Objects such as tires, balloons, hydraulic systems, and scuba diving tanks use pressure to function properly. Pressure is also used in various applications such as air compressors, hydraulic brakes, and pressure cookers.

The steps that occur during the making of the seed?

some plants have seeds that fall to the ground. these seeds grow near there parents other seeds are the spread to different places animals can spread these seeds too animals eat fruit with seeds in it. the fruit passes in the body of the animal and the seeds goes far from the parent plant the embrol will stay in the seed until the temperature is moist outside

What is the definition of Isostacy theory?

Isostasy theory is a geological concept that posits that Earth's lithosphere is in gravitational equilibrium, with lighter elements floating on top of heavier materials in the mantle. This theory explains how the lithosphere adjusts vertically to maintain balance when weight is added or removed, such as from the melting of ice sheets.

What happens to earth's magnetic field over time?

Earth's magnetic field is constantly changing in both strength and direction. It undergoes periodic reversals, where the magnetic north and south poles switch places. This process occurs irregularly, with the last reversal happening about 780,000 years ago.

When earth ends will it come back?

No, once Earth reaches the end of its life cycle, it will not come back to its previous state. The end of Earth would likely involve changes such as the sun expanding into a red giant, engulfing the planet or other catastrophic events that would make it impossible for Earth to return.

Which mineral had 4 directions of cleavage?

I think Calcite. Calcite is 3 on the hardness scale and sometimes you can break it into cubes. The difference between Calcite and Quartz is that Calcite is a milky white.

What forms can water be found in on the earth?

Because the earth's atmosphere creates consistent heat above freezing but bellow evaporating temperature, so the water doesn't freeze but is always effected by gravity. Comets and meteorites that impact earth also carry water. SOME water also melts when in direct sunlight (though not all if the planet/object does not have an atmosphere).

Describe the evidence used for subdividing Earth's interior into layers?

The evidence includes seismic waves, which travel at different speeds and paths through Earth's interior. By analyzing how these waves behave, scientists have determined that Earth has distinct layers such as the crust, mantle, outer core, and inner core. Other evidence comes from the study of meteorites, which provide insight into the composition of Earth's layers.

Who killed most on Earth?

It is not possible to determine who has killed the most people in history due to the varying accounts and lack of accurate records. Various historical figures and events are associated with significant casualties, such as Genghis Khan, Adolf Hitler, and wars like World War II and the Mongol invasions.

Are day and night caused by earths revolution on its axis?

Day and night are caused by the Earth's rotation on its axis. As the Earth spins, different parts are either facing towards the sun (daytime) or away from it (nighttime), creating the cycle of day and night.

How might the surface landscape above a laccolith look?

The surface landscape above a laccolith typically appears as a dome or bulge due to the intrusion of magma creating a blister-like formation beneath the Earth's crust. Over time, erosion may expose the laccolith's core, revealing the igneous rock that solidified underground. This can result in unique geological features like mesas or buttes.

List 4 situations in which evaporation can be observed?

This is a set of directions and a statement , not a question.

What process allows carbon dioxide to move into the cells of plant leaves?

Carbon dioxide enters plant cells through small pores called stomata on the surface of leaves. The stomata open to allow carbon dioxide to diffuse into the leaf for photosynthesis, and close to regulate water loss through transpiration.

What are earths tides caused by?

Earth's tides are primarily caused by the gravitational pull of the Moon and, to a lesser extent, the Sun. As the Moon orbits Earth and the Earth rotates on its axis, the gravitational forces create bulges in the ocean waters, causing high and low tides. The Sun's gravitational pull also contributes to the tides, but to a lesser degree due to its greater distance from Earth.

How a temperature inversion might form on a clear winter night?

An inversion is produced whenever radiation from the surface of the earth exceeds the amount of radiation received from the sun, which commonly occurs at night, or during the winter when the angle of the sun is very low in the sky

In the troposphere (the lowest layer of the atmosphere closest to the earth) temperature as a general rule decreases with altitude. That is, the higher up in the air, or the higher up in the mountains, the colder the air becomes. A temperature inversion is a reversal of this general rule, such that the temperature at the surface is colder than the air above it, or the temperature at some altitude increases for a certain vertical distance. On a clear winter night, the earth may lose heat since there are no clouds to absorb heat and hold it near to the surface; in the morning when the sun warms the air a temperature inversion may result. - pianodriver

Which statement presents the best evidence that a boulder-sized rock is an erratic?

A boulder-sized rock composed of a different type of rock than the surrounding area is the best evidence that it is an erratic. This indicates that the rock was transported from a distant location by glaciers or other geological processes.

How long does it take the earth to spin on its axis if the spin rate is 1670 kilometer and the circumference of the equator is 40000 kilometer?

Cannot be determined with the values you give. A spin rate cannot be defined by a linear dimension, You need to specify the angular dimension and a time value. or the peripheral speed which could be a linear and a time value.