Answer:
Plants take in Carbon Dioxide and filter it releasing oxygen.
Glucose can diffuse from the digestive tract into the human blood system without first being digested.
Answer:
1 Zinc, 2, Hydrogen, 2 Chlorine
Explanation:
4.3 Agricultural land. At present some 11 percent (1.5 billion ha) of the globe's land surface (13.4 billion ha) is used in crop production (arable land and land under permanent crops). This area represents slightly over a third (36 percent) of the land estimated to be to some degree suitable for crop production.
