Fact 1: Carbon dioxide concentrations in the air have increased over the last decade dramatically. Fact 2: Carbon dioxide, CO2, is usually a harmless gas. Given the two facts above, answer the question "what concentration in the air has increased dramatically over the last decade?" with the following options: - zinc - CO2 - h2o - CFCs - lungs - coal - O2 - CO 2
CO2

(Question)
Fact 1: Earthworms are important deposit feeders that help form and enrich soil. Fact 2: Deposit feeders ingest sediment and extract food particles. Given the two facts above, answer the question "what ingests sediment and extracts food particles?" with the following options: - animals - soil - humans - a fish - earthworms - barnacles - h2o - bacteria
(Answer)
earthworms

Ques: Fact 1: Head hair is especially important in preventing heat loss from the body. Fact 2: Hats The number area for heat loss on the body is the head. Given the two facts above, answer the question "What prevent heat loss from the body after losing hair?" with the following options: - gloves - skin - shoes - hats - sweat - cocoa - Masks - fur
Ans: hats

(Q).
Fact 1: Matter vibrating can cause sound. Fact 2: Overexposure to sound can damage hearing. Given the two facts above, answer the question "What can overexposure to vibrating matter cause?" with the following options: - symptoms - hypothyroidism - Pollution - hyperthyroidism - Damaged hearing - Electrical energy - Relieve pain - decrease stamina
(A).
Damaged hearing

Ques:Fact 1: Webbed feet are used for moving faster through water by aquatic animals. Fact 2: Ducks are aquatic birds. Given the two facts above, answer the question "what uses webbed feet for moving faster through water?" with the following options: - squids - humans - h2o - trout - octopus - insects - ducks - fish

Ans:ducks

Question: Fact 1: If food is not immediately used by the body for energy then that food will be stored for future use. Fact 2: Food is often stored in the nest for use when the supply is short. Given the two facts above, answer the question "Where would an animal store food for later?" with the following options: - river - Winter - trees - can - skull - nest - leaves - box
Answer:
nest