In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it. Your job is to determine which sentence(s) from the passage can be used to search for further information needed to answer the question.

Question: Which of the decidousous plants that border Igelbacken is the most abundant in the world? Passage:The upper part of the watershed is constituted of Norra Jarvafaltet, an open-air area characterized by moraine ridges covered with forests separated by water meadows and tilled fields. While some 20 hectares of the surrounding area is used for pasture, the stream is bordered by deciduous plants such as Alder and Birch and Bulrush can be found in non-shadowed patches. Some 2,5 kilometres from its origin, the stream passes down in a culvert under a traffic route (Akallavagen) and the Barkarby Airport before merging with the stream Djupanbacken. This part of the catchment area contains a motocross track, a golf driving range, a closed dump, and receives stormwater from the E18 traffic route. Thereafter, the stream flows some 4km in the valley separating the suburbs Akalla-Hjulsta and Tensta-Rinkeby and where are several rural structures including an ecological farm (Hasta Gard), eight allotment-gardens, and some minor overgrown wetlands. East of the valley the river is crossed by a second traffic route (Kymlingelanken) before flowing 2,5km through an open grassland to reach a railway and the E4 traffic route, water from the latter treated in a local cleaning plant. The last 1.4km passes more allotment-gardens and the gardens of the Ulriksdal Palace before jumping into Edsviken through a low dam.

While some 20 hectares of the surrounding area is used for pasture, the stream is bordered by deciduous plants such as Alder and Birch and Bulrush can be found in non-shadowed patches

Question: How many years did it take to develop the Sierra turbo? Passage:The second year of Group A in Australia saw the domination of the JPS Team BMW team fade with several other teams pushing forwards. Most spectacularly was the return of Nissan Motorsport Australia (now under the leadership of former Bathurst winner Fred Gibson) with the newly homologated Nissan Skyline DR30 RS turbo. Led by long time Nissan lead driver George Fury they were the main rival for another new team, the John Sheppard run Volvo Dealer Team, a factory supported team which succeeded the Mark Petch Motorsport Volvo team of 1985. The Touring Car Championship became a two horse race between Volvo's Robbie Francevic and Fury. Fury was never able to haul in Francevic's early points lead and Francevic was crowned champion. Francevic was fired from the Volvo Dealer Team by Sheppard the day after the Castrol 500 at Sandown after refusing to drive what he believed would be an un-competitive car which had only been completed at the meeting started. He then returned to the Mark Petch team as they began development of a Ford Sierra turbo. Although Francevic won the ATCC in the car, 1986 was the last time the Volvo 240T was seen in Australian touring car racing.

He then returned to the Mark Petch team as they began development of a Ford Sierra turbo

Question: Who preceded Henry Goulburn as Chief Secretary for Ireland? Passage:In 1808, Goulburn became Member of Parliament for Horsham. In 1810, he was appointed Under-Secretary of State for Home Affairs, and two and a half years later, he was made Under-Secretary of State for War and the Colonies. It was in this capacity that James Meehan named Goulburn, New South Wales after him, a naming that was ratified by Governor Lachlan Macquarie. Still retaining office in the Tory government, he became a Privy Counsellor in 1821, and shortly afterwards was appointed Chief Secretary for Ireland, a position which he held until April 1827. Here, although he was frequently denounced as he was considered an Orangeman, he had a successful period of office on the whole, and in 1823 he managed to pass the Composition for Tithes (Ireland) Act 1823. In January 1828, he was made Chancellor of the Exchequer under the Duke of Wellington; like his leader, he disliked Roman Catholic emancipation, which he voted against in 1828.
Still retaining office in the Tory government, he became a Privy Counsellor in 1821, and shortly afterwards was appointed Chief Secretary for Ireland, a position which he held until April 1827