Any mixture that contains more than one phase of matter is a heterogeneous mixture. Sometimes this can be tricky, because a change of conditions can alter a mixture. For example, an unopened soda in a bottle has a uniform composition and is a homogeneous mixture. Once you open the bottle, bubbles appear in the liquid.
Pearland is located in northern Brazoria County at 29Â°33â²16â³N 95Â°17â²45â³W / 29.55444Â°N 95.29583Â°W / 29.55444; -95.29583 (29.554349, â95.295959) south of Houston. Portions of the city extend north into Harris County, and a smaller portion extends west into Fort Bend County.
Pearland-area historical earthquake activity is significantly below Texas state average. It is 90% smaller than the overall U.S. average. On 2/10/2006 at 04:14:22, a magnitude 5.3 (4.2 MB, 5.3 MS, Depth: 3.1 mi, Class: Moderate, Intensity: VI - VII) earthquake occurred 330.8 miles away from the city center.