why is skilled human resource called an important infrastructure of development? mention any four reasons

Explanation:

Skilledmanpower is essential to carry out . To carry out severaldevelopment works may be difficult in the absence ofskilled manpower. They also play vital way for thesystematic utilization of thenatural resources and help to conserve them as well.

the correct answer is the following is a list of inventions made in the medieval islamic world, especially during the "islamic golden age" (8th to 13th centuries),[1][2] as well as the late medieval period, especially in the emirate of granada and the ottoman empire.

science and technology in the islamic world adopted and preserved knowledge and technologies from contemporary and earlier civilizations, including persia, india, china, and greece-roman antiquity, while making a number of improvements and innovations.

i truly dont know the answer wait i do its 1,3,4