Answer:
B
Explanation:
Pheromones a chemical substance produced and released into the environment by an animal, especially a mammal or an insect, affecting the behaviour or physiology of others of its species.

The higher the % IACS, the more conductive the material is. This standard refers to a pure, "standard" copper having a resistivity of 1.7241 microhm-cm at 20°C (68°F).
<span>Liquids have a medium shape and volume. The particles can move or slide past each other due to the small space available for movement. It cannot be compressed further due to the repulsive forces that act between them. The kinetic energy is medium too. These are the reason why liquids must be placed in a container or vessel to contain them. Beakers, Flasks, and graduated cylinders can contain the liquid. They are like glasses except they are shaped to achieve a specific measurement. Rulers cannot contain the liquid.</span>
Answer & Explanation:
A natural spring can be described as groundwater flowing naturally to the surface where it is lower than the water table. Water is present in the ground, which is under our feet in soil spaces and in the fractures of rock formations. There comes a point where the ground water is recharged and flows to the surface naturally. The water that naturally flows to the surface is called springs.