Answer: from the mouth to stomach
Explanation: mechanical digestion takes place when the food travels down from the mouth to stomach. Chemical digestion occurs from the mouth to intestine.
I believe the answer you are looking for is the "Neolithic Period".
Trash pollution like plastic can impact aquatic organisms, they can swallow the plastic which can kill them if not treated right away, other trash pollution like oils can make the aquatic organisms sick. Some pollutants can also affect the mother's milk when it comes time to feed their young, Lots of pollutions can make the animals sick very sick and they can't fight the virus so they ended up dying putting their species at risk of extinction.
Air pollutants can affect the birds, they are breathing in toxic airs from factories and that can kill them too or make them sick.
Pollutions are very bad for aquatic life and wildlife, we have to make sure we keep this planet clean or else we will die out too like the animals
hope this helped :)
Have a great day
Answer:
Neither country wanted to engage in a nuclear war that would lead to worldwide destruction.
Explanation:
The US and USSR became arch enemies soon after World War II ended, and that continued to be the case until the USSR seized to exist. The two countries became opponents and developed very bad and tense relations because they had different ideas as to how the world should shape up, but also because both of them wanted to be the only dominant power in the world.
Both countries were heavily armed and the weaponry was constantly icnreasing, with newer and better weapons constantly been created to gain an advantage. Nuclear weapons were abundant at both as well, but they never got used in an open war between them. The reason was simple, if a direct war between them occurred, there would have been worldwide destruction and everyone will lose, so that was kept as the last option in case of an attack by the other. Not to be mistaken though, these two were constantly in war with each other, not just diplomatic, but also military one, just that they used other countries as battlefields where they supported a particular side.
