Turn off the water when it is not needed; for example, turn off the water when you brush your teeth, turn off the water when you’re scrubbing your body and hair in the shower with soap (only turn it back on when you want to rinse).
To summarize: TURN OFF THE WATER (when it’s not needed) :)
Human activity can affect the river ecosystems because first of all humans take the water and use it for themselves, they also pollute it, disturb the ecosystems and kill fish or oysters etc. in the ecosystems.
False, hearing is caused by the eardrum picking up sound frequencies made by Jil. So its not the air molecules, its the sound waves.
The answer is; true
These microbes are usually adapted to their environment and this is why they are found in virtually all ecosystems. You will find bacteria even at the bottom of deep ocean beds deep and in geothermal vents, hypersaline water and very cold regions (such as polar regions). Fungi which vary widely in size from microscopically small to the largest organisms such as mushrooms are also found in virtually all environments on earth. They are nonetheless different species of these groups adapted to their environments.
Answer:
The nitrogen cycle could not exist without first nitrogen. The cycle is about this specific element which goes to show that if this element is not present then, there will not be any nitrogen cycle. Also, an important factor for the cycle is the presence of the bacteria and other microorganism which are needed for the fixation.
