You didn't put any options but an example of biological weather can be the weakening of a substance such as a rock being broken down due to various plants(... so nothing man made). Hope this helps :)
The answer is Order the Nigiri sushi which consists of just tuna and rice.
Allergic reaction is only erupted when the patient exposed to a specific ingredients. Danny developed an allergy reaction to the carbohydrate of rhodophytes, so the reaction wont appear if the sushi doesn't contain it. Rhodophytes is the Division that contain red algae, eating tuna and rice only should be okay.
Answer:
C
Explanation:
Observing is looking or listening not weighing or measuring. So the only possible answer is C.
Answer:
D
Explanation:
Biomass are basically organisms with organic mass. May be living or already dead. Hence, as any organism has biomass, biomass is plentiful. However, as biomass is not pure carbon compound that can fully decompose, toxic gases, carbon monoxide may be produced from incomplete combustion will lead to air pollution.