A layer-cake profile of different soil types is exposed when we dig into the earth. Geologists reason that these layers were laid down sequentially, and that layers lower down have to be older than the layers above them. This is called the law of:.

Brazzaville and kinshasha, luanda,librevilleand and monrovia.

The answer to the question is c.

This is all you, but i can give you some topics that you could try. if it rained when you want to do something outdoors, it 'limits' that human activity. maybe you want to do an experiment that goes throughout the whole year and you have to have above freezing the entire year. this 'limits' your activity. i thought of those just off of the top of my head. something that gets to me that might be getting to you is you are thinking too hard about what to do. think simply, and if it is too simple, then bump it up just a little bit.

Exploration mission 2;