Yes, DDT is very efficient against mosquitoes and other insects.
1-1.8 million years ago was approximately 0.2-0.8 million years ago.
558 years ago.
Sciences say that the sun was formed 4,600,000 years ago
granite
200 million years ago
the use of nicotine as an insecticide is dated 1500 years ago
bugs bunny
no its not they stopped like two years ago. no its not they stopped like two years ago.
a long time ago people used to meat the whales they kill.
because like we do the flu they become immune to it and it doesnt affect them
Ink was used for pens many years ago. It was used in China in probably the 23rd century.
1,200 years ago.
Pomegranate skins were used 4000 years ago, to fight intestinal worms and to dye leather.
50-40 thousand years ago
people hundreds years ago used pencil and paper to measure
Witchcraft started thousands of years ago, & was always feared by various people, for the possibility of evil magic being used to curse enemies or kill, etc.
No land animals (vertebrates) existed 440 million years ago. Lots of sea life, though. Bugs also started to appear about that time. Some scientists speculate a hypernova explosion may have caused a mass extinction of most of the life on Earth 440 million years ago.