So, if a population grows larger than the carrying capacity of the environment, there will be more organisms than the environment can support. The environment cannot sustain this number, so organisms will die until the population is under the carrying capacity. So, the death rate may rise to reduce the population size.
LPG gas is basically propane and butane, and it is odourless in its natural state. The smell that you notice when there is a leak is actually the stench of an entirely different agent, called Ethyl Mercaptan (C2H6S). This substance is added to the gas when it leaves the main storage terminals.
