During the devonian period (435-410 million years ago) of the Paleozoic era , the fist plants and insects appeared on Earth.
long time
I don't really know, but they say that insects were on earth way before dinosaurs.
Insects have been on Earth for about 400 million years, with their origins dating back to the Devonian period. They are one of the most diverse groups of organisms, and their evolutionary history has allowed them to adapt to a wide range of environments. Fossil evidence shows that they have been integral to ecosystems long before the rise of dinosaurs. Today, insects comprise the largest group of animals on the planet.
how long has archaebacteria been on earth? how long has archaebacteria been on earth?
The American cockroach, also known as the Palmetto bug, has been around for millions of years and is considered one of the oldest species of insects. Fossil evidence suggests that they have been on Earth for at least 280 million years.
No, insects are natural to earth, they belong to the earth thus in no sense can insects invade earth.
they have been on the earth for along time
They have been on earth since 190 million years ago.
becaus insects have been around long befor mammals even befor the dinos have and beyound that
Well it depends on what you mean. The distance for how long it takes, or the time as in how long since Earth was made. Earth as you know has been here a long long time. Stars light has been shinning towards Earth eversince it was made. To see how long it takes for a stars light to reach Earth depends on how distant and huge the star is.
for as long as it has had continents
A very long time.