Lets start over and go through the options from the starting.
Option A. they are all halogens.
oxygen is not a fluorine is halogen, chlorine is halogen but oxygen does not belong to halogen. Oxygen belongs to <span>chalcogen group.
So it's not option A.
Option B. they react easily with metals.
These metal are considered the most reactive metals in the period table.
So we can say that this can be true.
Option C. they are similar to noble gases.
We know that these element are not similar to noble gases. These elements are not in the gaseous state when formed.
So it's not option C.
Option D. they are all non-metals.
We all know that these elements are metal. So we can take it out immediately.
</span><span>So it can't be even D.
So, our correct answer will be B.
Hope this helped.. :)
</span>
Answer:
High and decreases.
Explanation:
If our body consumes a diet with high calcium amount than the body's ability to absorb calcium will decrease because some components in food such as oxalic acid and phytic acid, occurs naturally in some plants, which bind with calcium and can inhibit its absorption in the body.
Foods that contain high levels of oxalic acid are spinach, collard greens, beans, and sweet potato. Foods that contain phytic acid are fiber-containing whole-grain products, seeds, and soy isolates. Humans only absorb 30% of the calcium in food and it depends on which type of food we are consuming.
