short answer "Social problems and evils are the obstacles for the development f Justify your answer. ​

Both social problems and evils badly affect a country. They are a hurdle in the development of the country. (i) Solving these issues and evils consumes time, hence development is ignored. (ii) Plans and projects of eradication of evils and problems are to be made; hence development plans are ignored.

Explanation:

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the answer would be in this answer. someone already asked the question.  

giant impact theory - the moon was formed from the collision between earth and another mars-sized body.

colliding planetesimals hypothesis - the moon was formed from the same cloud of material as earth.

capture hypothesis - the moon was locked into orbit by earths gravity as it was passing by it.

accretion hypothesis - the moon was formed from collisions and combining of planetesimals.

i think this is right, if not and you know better let me know.