the correct answer is D
it was related to the food supply
The early humans moved out Africa when the climatic condition in the region of East Africa Rift valley,where earliest stone tools were discovered became increasingly dry. Hunting as a source of food also became scarce as animals also spread out of the region. Subsequent strains in areas where they conquered led them to migrate further across the globe.
A) diversity is the answer
I'm gonna go with C " It provided for quicker transport of manufactured goods which strengthened trade" Hope this helps.
<span>Iraq invaded Kuwait in August of 1990, this occupation precipitated the Persian Gulf War.</span>
Answer:
t = 2 seconds
Explanation:
Given that,
The length of a train, d = 180 m
The speed of the train, v = 90 km/hr = 25 m/s
we need to find the time will take to pass an electric pole. Let the time is t. So, it can be calculated as follows :

So, the required time is 2 seconds.