Which of the following is NOT a use of floral preservatives? O Replenishing the food source
O Lowering the pH
O Reducing bacterial growth
O Preventing ethylene damage

As the pea seeds respire, the level of coloured liquid in the left hand part of the capillary tube rises. by referring to what is happening in the apparatus, explain why the level of liquid changes

Which areas of earth receive the most precipitation on average? a. tropics b. temperate zones c. regions near 30? n and s latitudes d. polar zones 1

These are the components of the reservoirs of carbon that are exchanged in our environment.