A perennial stream or perennial river is a stream or river (channel) that has continuous flow in parts of its stream bed all year round during years of normal rainfall. `Perennial` streams are contrasted with `intermittent` streams which normally cease flowing for weeks or months each year, and with `ephemeral` channels that flow only for hours or days following rainfall.
Which of the following is the correct order of stream type from the least amount of time flowing to the most amount of time flowing over the course of a year?
| Perennial, ephemeral, intermittent. | |
| Perennial, intermittent, ephemeral. | |
| Ephemeral, intermittent, perennial. | |
| Ephemeral, perennial, intermittent. |
Alaska is a state in the United States, situated in the northwest extremity of the North American continent, with the international boundary with Canada to the east, the Arctic Ocean to the north, and the Pacific Ocean to the west and south, with Russia further west across the Bering Strait.
Alaska is the largest state in the United States by area, the 4th least populous and the least densely populated of the 50 United States. Approximately half of Alaska`s 731,449 residents live within the Anchorage metropolitan area.
Alaska`s economy is dominated by the oil, natural gas, and fishing industries; it has these resources in abundance.
According to this paragraph, which of these is false:
| Alaska is the smallest state in the United States by population. | |
| Alaska is a state in the United States. | |
| Alaska is the largest state in the United States by area. | |
| Alaska has an international boundary with Canada. |
Volunteer hosts went to the airport, picked up assigned students, fed them dinner, took them to the opening lecture at the Clay Center, put them in spare bedrooms for the night, then fed them breakfast this morning and will deliver the outstanding teens to buses that convey them to the mountain retreat where they undergo a month of intensive science training and outdoor fun.
Luckily, this year, enough local families volunteered to host all the brilliant youths. In the past, the number of guest homes sometimes fell short, and some of the visitors slept on cots and sleeping bags at local churches. They`re adventurous teens and don`t mind this makeshift camp-in but it`s better if friendly hosts give them a more personal welcome for their stay.
Which of the following topics would the next paragraph in this passage most likely cover?
| Instructions for how local families can volunteer to become hosts | |
| An overview of what the student`s science training will cover | |
| The story of a time when one of the students stole from his host family | |
| Instructions for how local families can enroll their children in a similar program |