Why is it important understand the importance of solidarity in promoting national and global community development?​

Solidarity is a tool for reducing inequality and social injustice in the world. Solidarity leads to the sustainable development of peoples. For this reason, it is essential that it be used for the benefits it can offer to a particular cause. Solidarity can be cultivated through education, as children or adults.

halibut, flounder, tuna, and trout are all fish. so your first answer is 1.) fish. and since fish is edible, your next answer would be 3). edible

to describe those fishes more thoroughly, some of those fishes live in fresh water, and some of the fishes live in salt water, and that is not a thing that they all have in common. the question is asking what is common with all of the fish, so answer choices 2). fresh water and 4). salt water are not right.

you need need more details so we can understand what your asking us.