Sentence examples for often difficult to decide from inspiring English sources

For these reasons, it is often difficult to decide whether prehistoric phenomena were of religious or magical character.

In highly modified, or 'novel', ecosystems it is often difficult to decide where limited conservation funds should be spent to reach management goals.

In orchids it is often difficult to decide when simple fly pollination ends and deception that is based on carrion mimicry begins.

Technology is full of marketing and hype – it's often difficult to decide early on whether an innovation is truly ground-breaking or not.

Moreover, it was often difficult to decide to what extent the decline in typhoid was attributable to improved sanitary conditions and what to the greater use of the vaccine.

The same type of catalysis probably occurs with many solid oxide catalysts (for example, aluminosilicates), although it is often difficult to decide whether the catalytic action of these materials is due to centres with a deficiency of electrons or to acidic hydroxyl groups.

Sampling approaches are often difficult to determine.

Physical access is often difficult to determine.

It is often very difficult to decide this question, because knowledge of human beings is insufficient or because the dramatist himself has not provided enough clues.

As such, it's often "extremely difficult" to decide where to take the measurements from.

It often becomes difficult to decide who is the best of the lot is.