Health professionals refer to foods and supplements that contain the live, active bacteria Lactobacillus acidophilus as probiotics.. Probiotic bacteria are abundant in naturally fermented foods, such as yogurt, sour cream, kefir, buttermilk, miso and tempeh.
The Gobi Desert can approach or even exceed 100 degrees F. in the  summer but the temperature can drop to near -40 degrees F. in  winter. 3 people found this useful.
They can be covered by sand, rock, salt lakes, stony hills and even mountains. Most non-polar deserts are hot in the day and chilly at night. The temperature in the daytime can reach 50 Â°C or higher in the summer, and dip to 0 Â°C or lower at night time in the winter. The largest hot desert in the world is the Sahara in North Africa. It is almost as large as Europe or the United States. The Sahara desert is also the hottest desert in the world.