Though many scientific breakthroughs have resulted from mishaps it has taken brilliant thinkers to recognize their potential.
Giải chi tiết:
mishaps = rủi ro
A. tai nạn
B. hiểu lầm
C. chi phí phát sinh
D. bất hạnh
Around 150 B.C. the Greek astronomer Hipparchus developed a system to classify stars according to brightness.
Biogas can be utilized for electricity production, cooking, space heating, water heating and process heating.
Population growth rates vary among regions and even among countries within the same region.