18 Which of the following Period 4 elements has the most metallic characteristics? (1) Ca (2) Ge (3) As (4) Br

if the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.

allowed for the prediction of the properties of missing elements.

the water is warmed up by the sun and then it evaporates into the atmosphere. the sunlight warms the water by its heat. water is then cooled down and condensation takes place. the water then finally returns back to the earth by the process of precipitation in the form of rain or ice.

explanation:

answer: um

explanation: find shelter