The correct answer is - C) the atmosphere.
The atmosphere is mostly invisible to the naked eye of the humans. It is composed of gassy layers that surround the planet. There's multiple layers in our atmosphere, five to be more precises, the troposphere being the lowest, than the stratosphere, the mesosphere, the thermosphere, and the exosphere.
All of them have their own unique characteristics, be ti in temperature, composition of gases, density, and they all have certain role in the life on the Earth and enabling that it exists.
