The second one is A, amount of time
I believe your answer is C. incandescent bulb
The coolest layer is the crust. The crust is on the surface of the earth (where we are) . Inner Core
technology
reuse, recycle and reduce
resources
Answer:
Niger
Explanation:
The northern part of the river, known as the Niger bend, is an important area because it is the major river and source of water in that part of the Sahara desert. This made it the focal point of trade across the western Sahara, and the centre of the Sahelian kingdoms of Mali and Gao.