Answer:
Explanation:
The main difficulty of barter system is the lack of double coincidence of wants. In a barter system a person who wants to exchange his goods must find some person who is willing to exchange his commodity with his commodity. Hope that helps!!!
Answer:
Planning
Explanation:
The Planning section chief is needed to develop and organize an incident action plan for the large events. He is one responsible for preparing the incident action plans. He also manages the information as well as maintains the situational awareness for the incident to take place.
He is in control of the overall execution of the event.
Answer:
Life began on Earth at least 3.5 to 4 billion years ago, and it has been evolving ever since. At first, all living things on Earth were simple, single-celled organisms. Much later, the first multicellular organisms evolved, and after that, Earth's biodiversity greatly increased.
Explanation:
