WHOEVER ANSWEERS FIRST WILL GET BRAINLIEST

A student conducted a scientific investigation on the magnetic properties of iron. She used a magnet to try to pick up iron nails.

After making several observations, which question can she answer?

Which part of a magnet is strongest at attracting iron?
How fast does iron lose its magnetism?
What is the importance of studying the magnetic field of a magnet?
How does the color of iron change with exposure to air?

Pls the table below shows the role of different substances during photosynthesis. substance role during photosynthesis glucose stores chemical energy water combines with glucose to form carbon dioxide chlorophyll traps sunlight which of the following statements would correct one of the roles listed in the table? glucose combines with carbon to form water. chlorophyll reacts with light to produce carbon dioxide. water combines with carbon dioxide during photosynthesis. chlorophyll stores chemical energy needed for photosynthesis.