Question

III. Choose the odd one out and state the reason:

1. Carbon-di-oxide, oxygen, uric acid, urea .

2. Chlorophyll, water, ethyl alcohol, light .

3. CO2, H2O, O2, respiration.​

Answer 1

Answer:

1. oxygen

cause other 3 are excretory waste and comes out of the body.

2. ethyl alcohol

cause other 3 are needs for photosynthesis

3. H2O

cause others are related to respiration and H2O ( water) is not

Explanation:

I got this from our qb

Answer 2

Answer:

2. ethyl alcohol because except alcohol all are the parts of photosynthesis

3. respiration because CO2 H2O and oxygen are the gases coming outside from respiration so respiration is the right answer