Answer:
Explanation:
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.
They developed to be protected by the hard shell from parasites and ther predators.
Answer:
All cells except sex cells
Explanation:
An example of sustainable resource use is the use of predators and parasites to,
<span>control insects</span>
