Answer:
The process of photosynthesis produces glucose which is a form of food for plants. The gas produced by photosynthesis is oxygen.
Answer:
Steel
Explanation:
In fact, sound waves travel over 17 times faster through steel than through air. Sound waves travel over four times faster in water than it would in air
Alzheimer's disease is a form of dementia that causes problems with memory. Alzheimer's accounts of 60-80 % of dementia cases and interferes with normal life. It is not a normal part of aging, even though people think that old people are forgetful. Alzheimer's usually starts with difficulty remembering newly learned information. Memory loss is not necessarily Alzheimer's.
Answer:
it allows only some materials to pass through and leave the cell.
A.Energy,Water,Sunshine, Protection
