What were the effects of the neolithic revolution? check all that apply.
labor became specialized.
humans moved out of africa.
permanent settlements were established.
communities could store a surplus of food.
humans learned how to control fire.

The most suitable answers are,

Explanation:

The major changes, or the revolutionary changes were the transition of the human society from a Hunter-Gatherer state to an agricultural civilization. Because of this, the Normadic and travelling nature of people gradually changed and the people settled in agriculturally resourceful areas, paving the way to the oldest civilizations to emerge!

answer: this is because archeologists keep finding artefacts and ancient ruins dated more than 10000 to 15000 years, date around scientists said humans discovered language; which is at least mysterious as scientists always have said that is necessary to have a language to have architecture and some basic maths.

explanation: brainlest

the perimeter of a triangle is 69 cm. side a is 5 cm shorter than side b. side c is twice as long as side a. find the length of each side. i need to know how to do it in 2 equations.  

equations:

a = b-5

c = 2a

a + b + c = 69