Using the periodic table, explain why rubidium has higher ionization energy than cesium.

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

What is the effect of returning nuclear reactor cooling water back into bodies of water?

Which of these statements best explains why space exploration should be encouraged? it prepares humans to live without oxygen. it dispel myths about objects in space. it prevents comets and asteroids from striking earth. it creates technology to absorb harmful radiations in space.