Which of the pairs of atoms is MOST likely to form a covalent bond? 1. Ca and S
2. Li and F
3. N and O
4. AI and P

What is the polyatamic ion of thiosulfate

How have the greenhouse gasses increased from the year 2000 to 2018

Which ocean zone has the most abundant primary producer and why a) the abyssopelagic zone ,du to the absence of light and cold water temperatureb) the bathypelagic zone, due to the absence of light and cold water temperaturec) the mesopelagic zone ,due to uts high light availability and warm water temperature d) the epipelagic zone,due to its high light availability and warm water temperature