Endangering someone is doing something that could hurt or harm them. It's illegal to endanger someone, and it's also dangerous.
To thrive is to do well, to be successful. When a plant or animal thrives, it is able to grow and survive in difficult conditions.
To destruct something is to break it or to damage it. When the government destroyed the city, they were breaking the buildings and causing a lot of damage.
To crowd something is to put too many people or things in a space. When the stadium was full of people, it was crowded.
Churning is the process of turning something (usually milk) into cream. It's usually done by heating the milk until it starts to boil, and then adding a special kind of milk protein called casein.
Ethically means in a way that is consistent with the principles of right and wrong. When someone says that they are ethically opposed to abortion, they are saying that they believe that abortion is wrong.
Mumps is a virus that is spread through the air. It is usually a very unpleasant experience, and people often feel a lot of pain and inflammation.
Ebola is a virus that is very dangerous and can kill people very quickly. It is spread through contact with blood or body fluids, and it is most common in Africa.