Maysara Mukhaimer, a Palestinian expert on Plant Biology, shows newly-developed black tomatoes inside a greenhouse, in the southern Gaza Strip city of Rafah, June 30, 2020. (Photo by Rizek Abdeljawad/Xinhua)

Maysara Mukhaimer, a Palestinian expert on Plant Biology, inspects newly-developed black tomatoes inside a greenhouse, in the southern Gaza Strip city of Rafah, June 30, 2020. (Photo by Rizek Abdeljawad/Xinhua)