The rock type formed through the deposits compression of elastic particles is ?
anthracite
sandstone
limestone
mudstone
Correct answer is D
No explanation has been provided for this answer.
Th earth's crust consists essentially of?
magnesium and silica
silica and aluminium
calcium and aluminium
magensium and calcium
Correct answer is B
No explanation has been provided for this answer.
Chain survey is most convenient for measurements on ?
rocky environment
plains
embarkment
irregular slopes
Correct answer is B
No explanation has been provided for this answer.
2.5 km
3.0 km
3.5
5.0
Correct answer is A
No explanation has been provided for this answer.
The greatest advantage of pereninnial irrigation is that
two or three crops can be produced in a year from the same piece of land
it makes it possible to irrigate larger areas
much silt is trapped and this helps to enrich the soil
it allows water to be held on the land for several weeks
Correct answer is A
No explanation has been provided for this answer.