Which of the following is necessary for plants to exhibit phototropism
) a) geotropism b) thigmotropism c) phototropism d) photoperiodism

Acricket ball of 70g moving with a velocity of 0.5 m/s is stopped by a player in 0.5s what is the force applied to stop the ball

According to the tide table below what time of day will the highest tide occur?

The experiment was repeated many years later but the gases were mixed in a different type of container. a white solid was obtained which was xenon fluoride. predict whether you think 1) krypton and 2) radon will react with fluorine. explain reasons for your predictions