Chemicals like Nitrogen, Carbon and Oxygen cannot be made or destroyed they can only change their phase and location.
There are several biogeochemical cycle in the environment which keeps the essential nutrient in rotation within the ecosystem.
Such as carbon cycle, nitrogen cycle, phosphorus cycle etc.
In all these cycles, the nutrient is being continuously cycled between the producer (plants & trees), consumers (animals & human beings) and the decomposers (bacteria’s etc.)
These nutrients continuously changes their form and place in order to be in a used efficiently.
The bile is produced by the liver and the gallblader only serves as storage between meals. The main stimulus for the release of bile from the gallblader comes from the nervous system,after food is put in the mouth.
Angiosperms have flowers. The flowers are special structures for reproduction. They contain male parts that make pollen and female parts that contain ovules. Some plants have these male and female parts in different flowers.F
Sound is a form of Energy that produces a sensation of hearing in our ears.
Sound is produced as a result of vibration produced in a body.
Sound energy is transmitted from one place o other place by wave motion.
When a body vibrates, the particles of medium surrounding it starts vibrating about their mean position.
During vibration, they collide with the surrounding particle and transfer some energy to them.
They then start vibrating faster and transferring energy to the next surrounding particle. This process continues till the vibration reaches a person ear.
Thus, particles are an important factor in propagation of sound.
Sound cannot travel in vacuum.
It requires a medium to travel from one point to another.
A sound can travel in all medium, solids, liquids and gases as all of these have particles.
The speed of sound is highest in solids and lowest in gases as the inter molecular space is largest in gases and smallest in solids.
