Misc: In 1943 Canadian Army troops arrive in?

Questions

In 1949, forecasting the relentless march of science, Popular Mechanics said computers in the future may weigh no more than ---------- tons.?

It takes ---------- minutes for light to get from the sun to earth.?

It takes one fifteen-to-twenty-year-old tree to produce ---------- paper grocery bags.?

It takes the insect-eating ---------- Flytrap plant only half a second to shut its trap on its prey.?

---------- gas can often be seen bubbling up from the bottom of ponds. It is produced by the decomposition of dead plants and animals in the mud.?