In March 2015, the winds and storm surge created by Cyclone Pam resulted in waves of 3 metres (9.8 ft) to 5 metres (16 ft) breaking over the reef of the outer islands caused damage to houses, crops and infrastructure. On Nui the sources of fresh water were destroyed or contaminated. The flooding in Nui and Nukufetau caused many families to shelter in evacuation centres or with other families. Nui suffered the most damage of the three central islands (Nui, Nukufetau and Vaitupu); with both Nui and Nukufetau suffering the loss of 90% of the crops. Of the three northern islands (Nanumanga, Niutao, Nanumea), Nanumanga suffered the most damage, with 60-100 houses flooded, with the waves also causing damage to the health facility. Vasafua islet, part of the Funafuti Conservation Area, was severely damaged by Cyclone Pam. The coconut palms were washed away, leaving the islet as a sand bar.
The loss of what caused the Vasafua islet to become  a sand bar due to Cyclone Pam?
coconut palms

The Duchy administers bona vacantia within the County Palatine, receiving the property of persons who die intestate and where the legal ownership cannot be ascertained. There is no separate Duke of Lancaster, the title merged into the Crown many centuries ago – but the Duchy is administered by the Queen in Right of the Duchy of Lancaster. A separate court system for the county palatine was abolished by Courts Act 1971. A particular form of The Loyal Toast, 'The Queen, Duke of Lancaster' is in regular use in the county palatine. Lancaster serves as the county town of the county palatine.
Who is the Duchy administered by?
the Queen

Longstanding political tensions from the 27 year rule of William Tubman resulted in a military coup in 1980 that overthrew the leadership soon after his death, marking the beginning of political instability. Five years of military rule by the People's Redemption Council and five years of civilian rule by the National Democratic Party of Liberia were followed by the First and Second Liberian Civil Wars. These resulted in the deaths and displacement of more than half a million people and devastated Liberia's economy. A peace agreement in 2003 led to democratic elections in 2005. Recovery proceeds but about 85% of the population live below the international poverty line.
In what year did a military coupe overthrow leadership leading to william tubmans death?
1980