The British Isles are a group of islands off the north-western coast of continental Europe that consist of the islands of Great Britain, Ireland and over six thousand smaller isles. Situated in the North Atlantic, the islands have a total area of approximately 315,159 km2, and a combined population of just under 70 million. Two sovereign states are located on the islands: Ireland (which covers roughly five-sixths of the island with the same name) and the United Kingdom of Great Britain and Northern Ireland. The British Isles also include three Crown Dependencies: the Isle of Man and, by tradition, the Bailiwick of Jersey and the Bailiwick of Guernsey in the Channel Islands, although the latter are not physically a part of the archipelago. 

The oldest rocks in the group are in the north west of Scotland, Ireland and North Wales and are 2,700 million years old. During the Silurian period the north-western regions collided with the south-east, which had been part of a separate continental landmass. The topography of the islands is modest in scale by global standards. Ben Nevis rises to an elevation of only 1,344 metres (4,409 ft), and Lough Neagh, which is notably larger than other lakes on the isles, covers 390 square kilometres (151 sq mi). The climate is temperate marine, with mild winters and warm summers. The North Atlantic Drift brings significant moisture and raises temperatures 11 °C (20 °F) above the global average for the latitude. This led to a landscape which was long dominated by temperate rainforest, although human activity has since cleared the vast majority of forest cover. The region was re-inhabited after the last glacial period of Quaternary glaciation, by 12,000 BC when Great Britain was still a peninsula of the European continent. Ireland, which became an island by 12,000 BC, was not inhabited until after 8000 BC. Great Britain became an island by 5600 BC.
where are the oldest rocks?
how old ar ethey?
how many islands make up the british isles
how many independant countries are there?
what are they?
Is the topologyy massive in scale?
how is it described?
How high is Ben Nevis?
how big is the Lough?
Is the climate cold and dry?
what is it?
which makes what kihnd of conditions?
what effect does the north atlantic drift have?
how much increase?
what kind of plants grew naturally?
tropical?
is it there now?
was britain re-inhabited while it was an island?
when  did that happen?
was Ireland re-inhabited before britain?
in north west Scotland, Ireland, and North Wales
The oldest rocks in the group are in the north west of Scotland, Ireland and North Wales
2,700 million years old
2,700 million years old
more than six thousand
 six thousand smaller isles
Two
Two sovereign states 
Ireland and the United Kingdom of Great Britain and Northern Ireland
Ireland (which covers roughly five-sixths of the island with the same name) and the United Kingdom of Great Britain and Northern Ireland.
no
The topography of the islands is modest in scale by global standards. 
modest by global standards.
odest in scale by global standards.
1,344 metres (4,409 ft)
Ben Nevis rises to an elevation of only 1,344 metres (4,409 ft)
390 square kilometres (151 sq mi).
Lough Neagh, which is notably larger than other lakes on the isles, covers 390 square kilometres (151 sq mi).
no
. The climate is temperate marine, with mild winters and warm summers.
temperate marine
 temperate marine, with mild winters and warm summers.
mild winters and warm summers.
he climate is temperate marine, with mild winters and warm summers.
brings moisture and raises temperatures
The North Atlantic Drift brings significant moisture and raises temperatures 11 °C (20 °F) above the global average for the latitude
11 °C (20 °F) above average
 brings significant moisture and raises temperatures 11 °C (20 °F) above the global average for the latitude
rainforest
 This led to a landscape which was long dominated by temperate rainforest,
no, temperate
temperate rainforest
no
human activity has since cleared the vast majority of forest cover
yes
The region was re-inhabited after the last glacial period of Quaternary glaciation, by 12,000 BC when Great Britain was still a peninsula of the European continent.
by 12,000 BC
by 12,000 BC 
no
 Ireland, which became an island by 12,000 BC, was not inhabited until after 8000 BC.