In this task, you are given two facts, and a multiple-choice question. Based on the given facts, answer the question with index of the correct option (e.g, "A").

Fact1: the looseness of soil has a positive impact on a plant 's roots' growth in that soil, Fact2: Roots gather plant nutrients., Question: What does looseness of soil have an impact on? (A) age of the plant (B) viability of plant (C) important habitats (D) bloom time (E) climate (F) water retention (G) Plants growth (H) genetic diversity
G

Fact1: global warming is when worldwide temperature increases, Fact2: Mass extinction occurs in the ice age and global warming periods., Question: When worldwide temperature increases, mass what occurs? (A) extinction (B) deforestation (C) carbon (D) ice age (E) living (F) movement (G) It decreases (H) Pollution
A

Fact1: Loss of ozone has created an ozone hole over Antarctica., Fact2: Ozone depletion allows more ultraviolet radiation, which causes skin cancer., Question: Why has the risk of developing skin cancer increased for those living near Antarctica? (A) 70-75 degrees Fahrenheit (B) higher ultraviolet radiation (C) Exposure to oxygen and water (D) tanning machines closed (E) more infectious tourists (F) Being over land (G) more shiny polar bears (H) a surface not sterilized
B