Following on from the weight of the world questions then, is any new substance ever created or is it all just recycled molecules of other things? Has everything that is on earth now been here since...
How fast does the earth revolve (in mph) so that it makes one revolution of its axis in 24 hours, and what speed is it going so that it circles the sun once a year?
Help! I have to get a farewell present for a couple of good friends in their 30s who are moving away from the area they've lived in for about 15 years. Any ideas?
Does anyone know the answers to these?
52 C in a P (WJs)
90 D in a R A
100 C in a E
8 T on a O
23 P of C in the H B
6 B to an O in C
15 M on a D M C
Thanks in advance!
