World Geography The longest era of the classification of the history of earth is Pre-Cambrian era Cainozoic era Palaeozoic era Mesozoic era Pre-Cambrian era Cainozoic era Palaeozoic era Mesozoic era ANSWER DOWNLOAD EXAMIANS APP
World Geography The Palaeozoic era starts at ____ million years ago and ends at ____ million years ago. 470, 225 500, 100 470, 150 570, 225 470, 225 500, 100 470, 150 570, 225 ANSWER DOWNLOAD EXAMIANS APP
World Geography The group of minerals chemically containing hydrocarbons is hydride group oxide group organic group silicate group hydride group oxide group organic group silicate group ANSWER DOWNLOAD EXAMIANS APP
World Geography What is the approximate interval between spring tide and neap tides? 20 days 30 days 7 days 15 days 20 days 30 days 7 days 15 days ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The time gap between spring and neap is approximately 7 days. The neap tides refers to a period of moderate tides when the sun and moon are at right angles to each other. The spring tides are high tides.
World Geography The moon orbits the earth at a mean distance approximately 149.6 million km 579 million km 0.384 million km 227.9 million km 149.6 million km 579 million km 0.384 million km 227.9 million km ANSWER DOWNLOAD EXAMIANS APP
World Geography The minor planets revolving between the orbits of Jupiter and Mars are called Novas Comets Meteors Asteroids Novas Comets Meteors Asteroids ANSWER DOWNLOAD EXAMIANS APP