A Multi-Celled organism has many cells (more than one). Examples would be plants, humans and animals/mammals.
A Single-Celled organism only has one cell that makes up it's entire self. Examples would be bacteria and archaea.
Answer:b. One of the most significant environmental issues is the large quantity of waste produced by businesses and society.
Explanation:
A pollution is a drawback for the development of the environment. The pollution is produced by the liberation of toxic chemicals, agents or even sound at high volume. It disturbs the natural balance of nature. The pollution can be caused by the liberation of toxic wastes from the production businesses and societies. This causes harm to the society by deteriorating the natural environment.
In human audition, the vibration of the ossicles is triggered by the vibration of the tympanic membrane (the eardrum) and transmitted directly to the fluid and membranes of the inner ear.
The inner ear is shaped like a snail with a thousands of tiny hair cells in it and it is called the cochlea. Hair cells change the vibrations into electrical signals that are sent to the brain through the auditory nerve.
D. Oxygen and metal
They usually contain some form of metallic cation, given that carbonates are the most distributed minerals in the Earth's crust.
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I would first,find a way on how to fix the earth.Then I would put houses on the lands.