The Natural World - the sea A quiz on the sea based on basic knowledge and information found on the VFT I created zoeproudfoot published on April 03, 20126 responses 3 « Previous Next » Questions in vertical order 1/8 What percentage of the Earth's surface is covered by ocean? 65% 70% 75% 2/8 How many low tides are there each day? 1 2 3 3/8 How many barrels of oil are estimated to run into the oceans each year? 7 million 14 million 21 million 4/8 Which country has the longest coastline? Canada Great Britain South Africa 5/8 How long is the Great Barrier Reef? 2,000 km 4,000 km 6,000 km 6/8 How many birds are estimated to die due to sea pollution? 10,000 100,000 1,000,000 7/8 How many marine mammals are estimated to die due to sea pollution? 10,000 100,000 1,000,000 8/8 What is the name of this marine mammal? Shark Mermaid Dugong
