A. Harmony with Nature and Biodiversity
B. Invest in Our Planet
C. Restore our Earth
D. None of these
A. USA
B. Russia
C. France
D. China
A. Sunflower
B. Soybean
C. Cotton
D. Castor
First plant to sprout on far side of the moon is dead. Unfortunately, it seems the harsh environment on the Moon resulted in the cotton sprouts never having a chance of progressing beyond the budding stage. As LiveScience reports, when night fell on the area of the Moon where the lander sits, temperatures plummeted to minus 62 degrees Fahrenheit (minus 52 Celsius). The plants couldn’t cope with such a rapid change in temperature and the biosphere was not designed to keep the temperature inside hospitable without the help of the sun. In the end, the water inside froze and the cotton plants dehydrated and died. No other signs of life were detected from the other seeds or insect eggs before the temperature drop occurred.
A. 40,000 Years Ago
B. 45,500 Years Ago
C. 50,000 Years Ago
D. None of these
The world’s oldest known cave painting has been discovered by archaeologists in Indonesia. It is a life-sized picture of a wild pig that was made at least 45,500 years ago. The findings were documented in the journal Science Advances on Wednesday, and it provides the earliest evidence of human settlement of the region.
North Korea has said that it is cutting communication hotlines with South Korea. At least 49 hotlines have been set up between the two nations for diplomatic talks, discussions over economy and military operations and for coordination of air and sea traffic.
A. 8
B. 9
C. 10
D. 11