Social Sciences

The 180 degrees longitude line, also known as the International Date Line, is a navigational line used to mark the change of one calendar day to the next. It is not physically drawn on maps or globes, but rather serves as a demarcation for time differences between different regions of the world.

The steam can be used to turn turbines that in turn generate electricity.

The steam is generated by burning coal or some other fossil fuel, or nuclear power.

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Steam under high pressure and high temperature would have pressure energy and thermal energy. As energy can neither be created nor be destroyed and could be changed from one form into another, these form of energy is utilized to run the turbine to generate electrical energy.

In olden days steam was utilized to activate the piston in the cylinder and there by rotate the wheels of the rail engine.

This is how the energy right from steam being used.

water, food, and nutrients i think...

energy though is important because your heart cant pump blood without it

I think you also need shelter, but defiantly water food and nutrients... ;-)

People in the fertile Indus River Valley could live in cities and villages built alongside the river for access to water for irrigation and transportation. They likely built homes using materials such as mud bricks and had agricultural fields nearby to grow crops.

A bimetallic strip can be found in thermostats and temperature gauges. It consists of two different metals bonded together with different thermal expansion rates, causing the strip to bend when exposed to temperature changes. This bending movement is often used to trigger mechanical switches or valves in response to temperature variations.

The scientific method involves making observations, forming a hypothesis to explain the observations, conducting experiments to test the hypothesis, analyzing the data collected from experiments, and drawing conclusions based on the results. This process is iterative, with scientists revising their hypotheses and conducting further experiments to refine their understanding of a phenomenon.

Elastic energy is the potential energy stored when an object is deformed, such as when a spring is compressed or stretched. It is a form of mechanical energy that can be converted into kinetic energy when the object returns to its original shape. The amount of elastic energy stored depends on the elastic properties of the material and the amount of deformation.

i have read water has maximum density at temprature of 4 degree celsius...so water vapour is not most dense form of water.

The relationship between them is as follows.

mass = volume x density

weight = mass x gravity

That means that, other things being equal, mass is proportional to volume. On the other hand, weight is also proportional to mass.

The study of the past based on what people left behind is known as archaeology. Archaeologists use artifacts, structures, and other physical remains to learn about past societies, cultures, and environments. This field helps us understand how people lived, interacted, and adapted to their surroundings throughout history.

water, food, energy, oxygen and needs to be a suitable living condition.

these are the 6 parts that make up an ecosystem.

the different parts of an ecosystem are;primary producers,primary consumers,secondary consumers,tertary consumers and the decomposers help to make an ecosystem.........ecosystems contain biotic components-living organisms that inhabit the ecosystem as well as abiotic components of an ecosystem include water, soil, sunlight, minerals and other non-living things.

The two theories if hoodoo formation (aside from metaphysical reasons) are:

* Water eroded and cracked the harder cap rock on the hoodoos to be. The water in the cracks froze and thawed cracking off chips which were washed away. When the rough shape of the hoodoo was formed the cap rock biscuit acted as an umbrella to protect the center of the hoodoo. The outer edges then rounded off with ongoing spalling of rock in cycles of wetting and freexzing. * Sand blown by the wind eroded the hoodoos from soft rock. This is discredited by the lack of a single eroded side to the hoodoos caused by prevailing winds

Tensional forces typically cause objects to stretch or elongate.

There are many chemical compounds and other materials that can pollute the air. Braidly speaking these are (some examples gives:

* Chemical gases (SOx NOx) * Organic vapours (ethylene, VCM, solvents) * Aerosols (mists of liquid chemical) * Fumes (metals) * Dusts (Chaff, soot) * Odours (mercaptans) * Toxics (H2S) * Opacity * Hydrocarbons * Reactive chemicals * Natural Contaminants (Ozone)

Positively charged ions are called cations. An ion becomes positively charged when it loses one or more electrons. Conversely, negatively charged ions are called anions. An ion becomes negatively charged when that atom gains one or more electrons. An ion, as defined by Merriam-Webster dictionary, is "an atom or group of atoms that has a positive or negative electric charge from losing or gaining one or more electrons."

1. Malleability and ductility: Metals are malleable and ductile due to the delocalized electrons in metallic bonding, which allow layers of atoms to slide past each other without breaking.
2. High electrical conductivity: Metals conduct electricity well because of the free-flowing electrons that can move throughout the material.
3. Luster or metallic shine: The ability of metals to reflect light and exhibit a shiny surface is a result of the mobility of electrons in metallic bonding, allowing for efficient absorption and re-emission of light.

Some say that volcanic soil is much more fertile than "regular" soil, so that would be a positive.

Volcano's release a LOT of energy. Releasing that energy through a volcano could prevent earthquakes. That's a positive.

Big volcanoes put lots of dust and ash into the air. This causes some really beautiful sunsets. that's a positive.

all that dust in the air often causes more rain to fall. that could be a positive.

Of course, depending on where the volcano hits, people often get killed and cities are destroyed. That's a negative.

Volcanoes are pretty unpredictable. That's a negative.

Dust, ash, and poison gasses in the air can make breathing difficult or even fatal to someone who might have asthma or emphysema. That's a negative.

Some of the poison gases mix with water to form acid rain. That's a negative.

If the volcano is big enough, it can put enough dust and ash into the air that it can actually cool down the earth's atmosphere. This can happen for a couple of years. In this case crops don't grow correctly, and that is a negative.

The number of waves passing a point in a given time can be calculated by dividing the speed of the wave by the wavelength. This will give you the frequency (number of waves per second), which when multiplied by the time duration will give you the total number of waves passing the point.

Buoyant force is entirely the result of gravity. In a gravitational field, we find denser objects sinking in whatever medium they are in (usually air or water) and less dense objects, if the density is lower than the surrounding medium, floating. In the absence of a gravitational field (or in free fall, which is equivalent) everything floats.

The name comes from the Indonesian Krakatau. Unfortunately the origin of that word is very uncertain. It may be related to a word simply meaning "island" but its etymology is currently unknown.

A genius level IQ is generally considered to be 140 or higher. This level of intelligence is rare and signifies exceptional cognitive abilities in areas such as problem-solving, pattern recognition, and memory retention. People with genius level IQs are often highly gifted in their chosen fields and may excel in complex or specialized pursuits.

Arizona has abundant natural resources such as copper, silver, gold, lead, zinc, and uranium. The state also has significant deposits of sand, gravel, and timber. Additionally, Arizona has a diverse range of agricultural products including cotton, citrus fruits, and vegetables.