Why does a fossil most often form in sediment?

Why does a fossil most often form in sediment? So most fossils are found in sedimentary rocks, where gentler pressure and lower temperature allows preservation of past life-forms. Fossils become a part of sedimentary rocks when sediments such as mud, sand, shells and pebbles cover plant and animal organisms and preserve their characteristics through time. […]

How has migrant farm work changed over the years?

How has migrant farm work changed over the years? In recent years, farmworkers have become more settled, fewer migrating long distances from home to work, and fewer pursuing seasonal follow-the-crop migration. The number of young, recent immigrants working in agriculture has also fallen, and as a result the farm workforce is aging. What laws do […]

What does high dimensional space mean?

What does high dimensional space mean? High Dimensional means that the number of dimensions are staggeringly high — so high that calculations become extremely difficult. With high dimensional data, the number of features can exceed the number of observations. For example, microarrays, which measure gene expression, can contain tens of hundreds of samples. How many […]

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