A
(I think but I am also sure because the others dont go with the flow)
The unit that can measure salt is milligrams
<span>The oldest rocks preserved in the planet contain the earliest evidence of life on Earth. Earth is said to be about 4.5 billion years old however the first signs of life on Earth was only about 3.5 billion years ago. Therefore, water on Earth was able to sustain life that long. The answer is A. True. </span>
Hundreds of years ago, explorers often died of scurvy. This bone-related disease be prevented by C) supplementing the diet with fresh fruit rich in vitamin C. Vitamin C is essential for the production of collagen which is found in bones and connective tissue. A lack of vitamin C can lead to a lack of collagen, leading to symptoms like gum disease, weakness, and bone pain.