Sentence examples for is hard to observe from inspiring English sources

The thing that provides structure in open-water ecosystems is the food-web, which is hard to observe and malleable.

It is hard to observe birds closely in their element, and that is why the market is so good among birders for binoculars and telescopes.

Italian tortoise, French hare The trouble with islands In the shadows ReprintsMeasuring the invisibleBy its very nature, the informal economy's size in any country is hard to observe.

This is partially due to the fact, that it is hard to observe it in situ.

However, it is hard to observe the changes on schedules in detail in an analytical way.

It is therefore important to better understand the movement behaviour of these crabs, even though it is hard to observe directly.

Quality is harder to observe, and is enhanced by verification of diagnosis and medication by an expert [ 20].

While inhibiting BCL-2 by itself can cause cell death in hematopoietic tumors, single-agent activity is harder to observe in solid tumors.

A rocket in storage and ready to launch within a year, however, "could mitigate the possibility of a sneaky asteroid coming in from a place that's hard to observe, like from the sun", he said.

Collisions or mergers of galactic clusters are fairly rare events, and the most powerful ones have been hard to observe because they lie in the plane of the Milky Way.

You can see a sample of his German style here).Returning to English, it can be hard to observe a lot of the usage advice out there, especially if that advice is phrased in a list of "don'ts" regarding grammatical categories.