Question

which things put oxygen into the air? (select all)
photosynthesis
animals
factories
plants
question 31
which are properties of water? (select all)
cohesion
adhesion
surface tension
universal solvent

Explanation:

1. Photosynthesis is the process by which plants use sunlight, carbon - dioxide and water to produce glucose and release oxygen into the air. Plants are the main organisms that perform photosynthesis, so photosynthesis and plants put oxygen into the air. Animals consume oxygen through respiration and factories usually release pollutants rather than oxygen.
2. Water has properties of cohesion (attraction between water molecules), adhesion (attraction between water and other substances), surface tension (due to cohesion at the surface), and is often called a universal solvent as it can dissolve many substances.

Answer:

For the first question: Photosynthesis, Plants
For the second question: Cohesion, Adhesion, Surface tension, Universal solvent