Answer:
answer B
Explanation:
The land features depend on the geology , the climate of the earth and formation of land features is a continuos cycle it could alter from time ,not providing clear evidence about history of that specific area
Based on the knowledge about radioactive elements, the decay of radioactive elements such as uranium creates heat especially in Earth's crust, where these elements are abundant.
<h3>What are radioactive elements?</h3>
Radioactive elements are elements which undergo spontaneous decay of their nucleus and in the process produce elements with smaller atomic masses with the release of radiation and heat.
Examples of radioactive elements include uranium and radium.
Therefore, the decay of radioactive elements such as uranium creates heat especially in Earth's crust, where these elements are abundant.
Learn more about radioactive elements at: brainly.com/question/18640165
The Renaissance Is generally considered to have started in Florence Italy around 1350 to 1400 .
Answer:
The HDI (Human Development Index) considers three main dimensions to evaluate the development of a country:
1. Long and healthy life of its citizens
2. Education.
3. Standard of living.
Explanation:
1. Long and healthy life
The long and healthy life dimension is measured by life expectancy at birth. The life expectancy at birth is a statistical measure that an average individual is expected to live based on certain demographic factors such as the year of birth and current age.
2. Education
This is a second dimension in the HDI. The indicators of education are the expected years of schooling and the mean years of schooling. According to the UN, the average maximum years of schooling is 18 years, while the mean maximum years of schooling is 15 years.
3. Standard of living
The standard of living is usually measured by the gross national income (GNI) per capita. The GNI indicates the total domestic and foreign output created by the residents of a certain country.
The Sahel is located in Africa. It is the region in Africa that transitions from the Sahara to the Sudanian Savanna. It stretches across in the region from the West of Africa to the East and includes parts of Senegal, Mauritania, Mali, Burkina Faso, Algeria, Niger, Nigeria, Chad, Sudan, South Sudan, Eritrea, CAR, Cameroon, and Ethiopia.
