<span>I think the fact that there was no single ruler in the stateless societies allowed them to endure for many centuries. No family had too much power than the others. The way they resolved their problems also helped them survive for a long time since it allowed them to peacefully talk about the issue without violence. They also had a very organized way to decide to who to pass down the possessions and property too. People were also separated into age-sets where they would pass stages of life with other people in the same generation.</span>
Answer:
water pollution
I think that makes industrial revolution
According to me, no animal would be able to survive in a condition where the sunlight is blocked. As the sunlight is blocked, plants will not be able to make their food as they need sunlight for the process of photosynthesis. As the plants will not get enough nutrition due lack of food, they would eventually die. By this, the herbivorous animals which feed on plants, would not get their food . Also, the the carnivorous animals which depend on the herbivorous animals for food, would not be able to satisfy their hunger as the animals they feed on would be weak or maybe even dead.
Correct Matches:
Element A) a substance that cannot be broken down into a simpler substance
Particle B) a tiny piece of matter
Scientific theory C) an explanation for some naturally occurring event
Atom D) the basic unit of an element