1- Paleozoic era
2- mesozoic era
3- Cenozoic era
The mitochondria is responsible for producing the energy for cellular processes.
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Answer:
Attractive forces between particles.
Explanation:
Solids keep its shape and volume because of strong attractive forces between the particles.
Other options are incorrect:
Because there is no space between solid particles.
The shape of solid does not depend upon type of particles present.
The shape and volume of solids not depend upon the volume and shape of container.
Properties of solids:
Solids have definite volume and shape.
In solids molecules are tightly pack and very close to each other.
Their melting and boiling point are every high.
The densities of solids are also very high as compared to the liquid and gas.
There are very strong inter molecular forces are present between solid molecules.
Answer:
Answer is A. Communicable disease.
Explanation:
The activity of the public health which is known to be the core or major function is the minimizing or stopping the spread or transmission of communicable or infectious diseases.
A communicable or infectious disease is a disease that can be transmitted from an infected person to other people that not infected. This usually occurs through body contacts, unprotected sexual intercourse, unscreened blood transfusion, sharing of unsterilized sharp objects among others.
