What is the objective here?
Answer:
Africa, the second-largest continent, is bounded by the Mediterranean Sea, the Red Sea, the Indian Ocean, and the Atlantic Ocean. It is divided in half almost equally by the Equator. The continent includes the islands of Cape Verde, Madagascar, Mauritius, Seychelles, and Comoros.
Africa’s physical geography, environment and resources, and human geography can be considered separately.
This human movement, or migration, plays a key role in the cultural landscape of Africa. Geographers are especially interested in migration as it relates to the way goods, services, social and cultural practices, and knowledge are spread throughout the world.
What is certain is that Africa will need foreign assistance in order to successfully combat climate change. Leaders within Africa and outside it will need to seek greater international cooperation for this to become a reality.
Explanation:
Halite, Calcite,Graniteigneous rock,Basaltigneous rock,Metamorphic,Gabbroigneous,Igneous rock,Metamorphic rocks,Sedementary rock,Obsidian, && last but not least is the Rhyoliteigneous.
The evidence provided by the fossils means that Trilobites became extinct 252 million years ago and lived on Earth more than 521 million years ago.
Basically, a fossil is a remains which gives geologist information about the organism which lived in the past because when those organism dies, they decay and remain on or in the earth surface
Since the trilobite fossils are found in rock that are 521 million years and 252 million years old, then, it means that:
- Trilobites became extinct 252 million years ago therefore, no other remains keep existing on rocks earlier.
- Trilobites lived on Earth more than 521 million years ago
Therefore, the Option A and D is correct.
Read more about fossil:
<em>brainly.com/question/18246719</em>
Both Radioactive dating of rocks retrieved from the world and Comparing cratering rates on one world to those on another.
Geologists can find the relative age of impact craters on a world because
the ones on top must be younger.
Scientists know the history of Earth's magnetic field because the magnetic field gets frozen into rocks, and plate tectonics spreads them out.
Hope it helps
