Flooded U-shaped glacial troughs carved by valley glaciers are called:

In the context of simple linear regression, which of the following statements about the sampling distribution of the variance estimator is correct?

In the context of cross-validation for regularized regression, the prediction risk estimate for a given value of lambda is obtained by averaging the scoring values across all folds of the data.

Which type of glacial movement occurs occasionally, as thick glaciers slide over an underlying surface?

The lower part of a glacier, where there are losses due to sublimation, evaporation and calving, is called the:

Glacial till is:

Semiarid and arid climates mostly occur at ______ latitudes.

Continental glaciers can also be called “ice sheets”.

Which of the following statements about the bias-variance tradeoff in the context of regularized regression is correct?

In deserts, wind is more effective than water at eroding and depositing material.