Problem: Please answer a question about the following article about Predation:
The elimination of wolves from Yellowstone National Park had profound impacts on the trophic pyramid. Without predation, herbivores began to over-graze many woody browse species, affecting the area's plant populations. In addition, wolves often kept animals from grazing in riparian areas, which protected beavers from having their food sources encroached upon. The removal of wolves had a direct effect on beaver populations, as their habitat became territory for grazing. Furthermore, predation keeps hydrological features such as creeks and streams in normal working order. Increased browsing on willows and conifers along Blacktail Creek due to a lack of predation caused channel incision because they helped slow the water down and hold the soil in place.
Why were plant populations affected after wolves were eliminated from Yellowstone?
A: Without predation, herbivores began to over-graze many woody browse species
Problem: Please answer a question about the following article about High-definition television:
For example, 1920×1080p25 identifies progressive scanning format with 25 frames per second, each frame being 1,920 pixels wide and 1,080 pixels high. The 1080i25 or 1080i50 notation identifies interlaced scanning format with 25 frames (50 fields) per second, each frame being 1,920 pixels wide and 1,080 pixels high. The 1080i30 or 1080i60 notation identifies interlaced scanning format with 30 frames (60 fields) per second, each frame being 1,920 pixels wide and 1,080 pixels high. The 720p60 notation identifies progressive scanning format with 60 frames per second, each frame being 720 pixels high; 1,280 pixels horizontally are implied.
The 1080i25 or 1080i50 notion identifies interlaced scanning format with how many frames per second?
A: 25
Problem: Please answer a question about the following article about Swaziland:
The main centre for technical training in Swaziland is the Swaziland College of Technology which is slated to become a full university. It aims to provide and facilitating high quality training and learning in technology and business studies in collaboration with the Commercial, Industrial and Public Sectors. Other technical and vocational institutions are the Gwamile Vocational and Commercial Training Institute located in Matsapha and the Manzini Industrial and Training Centre (MITC) in Manzini. Other vocational institutions include Nhlangano Agricultural Skills Training Center and Siteki Industrial Training Centre.
What types of education does the Swaziland College of Technology offer?
A: technology and business studies
Problem: Please answer a question about the following article about Hellenistic period:
The kingdom grew to its largest extent under Mithridates VI, who conquered Colchis, Cappadocia, Paphlagonia, Bithynia, Lesser Armenia, the Bosporan Kingdom, the Greek colonies of the Tauric Chersonesos and for a brief time the Roman province of Asia. Mithridates VI, himself of mixed Persian and Greek ancestry, presented himself as the protector of the Greeks against the 'barbarians' of Rome styling himself as "King Mithridates Eupator Dionysus." and as the "great liberator". Mithridates also depicted himself with the anastole hairstyle of Alexander and used the symbolism of Herakles whom the Macedonian kings claimed descend from. After a long struggle with Rome in the Mithridatic wars, Pontus was defeated, part of it was incorporated into the Roman Republic as the province Bithynia and Pontus and the eastern half survived as a client kingdom.
Pontus was defeated in what wars?
A:
Mithridatic