Precisely how life began on Earth remains unclear. It is believed, however, that life started after the planet had cooled enough for bodies of water to form. Scientists have found fossilized single-celled microorganisms in rocks that date to approximately 3.5 billion years ago. Scientists believe that algae is one of the earliest forms of life on our planet.
Answer:
En la década comprendida entre 1950 y 1960
Explanation:
En la década comprendida entre 1950 y 1960 se independizó la gran mayoría de los estados del norte, el centro y el oriente del continente, incluida la isla de Madagascar y la región que hoy día se conoce como el Cuerno de África
B) citizens should always be mindful
Answer - new technologies , like steam engines, railroads, and telegraph that made communication and transportation easier .
