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120 to 130 trees
It is impossible to determine how many trees cover a hectare. It depends on the species, the width of them, and how far from or close to each other they grow.
100000
50 people
Depending on the location and type of tree it could be anything from 0 to 400,000.
That's not a brand but there are many natural insecticides that contain guava-they are comprised of mostly plant/food oils. If you can specify brand name we can post a more comprehensive listing of what is in it.
I hectare = 10 decares
1 hectare = 2.471 acres
1 Hectare= 8.9 Tumoli
Two acres is about 0.81 hectare.
Hectare is approx 2.5 acres.
1 hectare = 0.01 km2