I wanted to go a more ________ route across Montana.

We often enjoy walking barefoot across the damp __ to the water's edge.

If the deserts are ________ managed, there may be troubles for scientific expeditions.

_______ is a branch of Natural Science, and is the study of living organisms and how they interact with their environment.

A / an _______ species is a population of an organism which is at risk of becoming extinct.

Many teenagers show signs of anxiety and _______ when being asked about their future.

Constant _______ of attack makes everyday life dangerous here.

No one can predict the future exactly. Things may happen _______.

In the future, the number of tiny but _______ computers you encounter every day will number in the thousands, perhaps millions.

Advances in computing _______, from processing speed to network capacity and the internet, have revolutionized the way scientists work.