Hey, how would I get the half-life and age of the rock in the senecio? Uranium 235 decays into Lead 207. The half-life is 704 million years. If the amount of Uranium 235 is equal to the amount of Lead 207

Four different thermometers were used to measure the temperature of a sample of pure boiling water. the measurements are recorded in the table below. thermometer temperature reading 1 temperature reading 2 temperature reading 3 w 100.1°c 99.9°c 96.9°c x 100.4°c 102.3°c 101.4°c y 90.0°c 95.2°c 98.6°c z 90.8°c 90.6°c 90.7°c the actual boiling point of pure water is 100.0°c. what can be concluded from the data about the reliability and validity of the thermometers?

Explain how organisms could be harmed by high levels of salt from roadways?

Warmer ocean surface water would most likely be found near