Posted on April 15, 2022 (Updated on July 9, 2025)
What subdivision of the geologic time scale represents the greatest expanse of time?
Natural EnvironmentsThere is another kind of time division used – the “eon”. The entire interval of the existence of visible life is called the Phanerozoic eon. The great Precambrian expanse of time is divided into the Proterozoic, Archean, and Hadean eons in order of increasing age. What subdivision of the geologic time scale represents the largest
Posted on April 15, 2022 (Updated on July 9, 2025)
What is fold mountains in geography?
Natural EnvironmentsFold mountains are created where two or more of Earth’s tectonic plates are pushed together. At these colliding, compressing boundaries, rocks and debris are warped and folded into rocky outcrops, hills, mountains, and entire mountain ranges. What are fold mountains called? Fold mountains are the most common type of mountain in the world. The rugged,
Posted on April 15, 2022 (Updated on July 9, 2025)
Was there an earthquake in Christchurch?
Natural EnvironmentsA major earthquake occurred in Christchurch, New Zealand, on Tuesday at 12:51 p.m. local time (23:51 UTC, 21 February).…2011 Christchurch earthquake. Damaged Catholic cathedral two months on Local date Local time 12:51 p.m. NZDT Magnitude 6.2 Mw 6.1 Mw Depth 5 km (3.1 mi) Has there been an earthquake in Christchurch? Christchurch and surrounding areas
Posted on April 15, 2022 (Updated on July 9, 2025)
What is the breakdown of rock into smaller pieces by physical means?
Natural Environmentsmechanical weatheringmechanical weathering, where rocks breakdown into smaller pieces by mechanical means. What is the breakdown of rocks into smaller pieces by physical forces? Weathering is the breaking down or dissolving of rocks and minerals on Earths surface. Once a rock has been broken down, a process called erosion transports the bits of rock and
Posted on April 14, 2022 (Updated on July 9, 2025)
How many cm does the glacier move in 1 day?
Natural EnvironmentsGlacial motion can be fast (up to 30 metres per day (98 ft/d), observed on Jakobshavn Isbræ in Greenland) or slow (0.5 metres per year (20 in/year) on small glaciers or in the center of ice sheets), but is typically around 25 centimetres per day (9.8 in/d). How fast does a glacier move per hour?
Posted on April 14, 2022 (Updated on July 9, 2025)
How does surface area affect weathering?
Natural EnvironmentsLarge rocks have less surface area for their volume than small rocks. Therefore, a smaller portion of the rock is exposed to weathering. It takes longer for the rock to wear away. The small rock has more surface area for its vol- ume, so it weathers away faster. Does more surface area increase weathering? Surface