Answer:
The answer is stated below.
Explanation:
There are various ways to increase your concentration while studying some of the best-known methods are mentioned below:
- Concentration techniques do need to be practiced. Only a few minutes of a day's practice will increase an individual's ability to concentrate on their studies.
- The studying time should be structured in a way to increase efficiency. For example, categorizing chapters according to topics.
- Moreover, the distractions during the study are taken well care of. For example, food and phones should be placed apart for fixed times.
Answer: d. The clastic sand that forms these rocks was weathered and eroded from the Sierra Nevada Mountains.
Explanation: Petrified Forest National Park is known for its fossils, especially of fallen trees that lived in the Late Triassic Epoch of the Mesozoic era, about 225 million years ago. During this period, the region that is now the park was near the equator on the southwestern edge of the supercontinent Pangaea, and its climate was humid and sub-tropical
The older (lower) layers of the formation consist of fluvial and lacustrine (lake-related) deposits of silt, sand, and clay. The younger (upper) Bidahochi contains ash and lava from volcanoes that erupted nearby and as far away as southwestern Nevada.