Fact 1: Biodiversity increases the productivity and stability of ecosystems. Fact 2: Biodiversity and ecosystems are complex systems. Given the two facts above, answer the question "What type of system is biodiversity?" with the following options: - our planet - insects - good - complex - trees - animals - fertile - vegetation
complex

Fact 1: Cycles of freezing and thawing water cause ice wedging. Fact 2: Ice wedges, which are common in high, cold latitudes, can force soil particles together. Given the two facts above, answer the question "What is common in high cold latitudes that can force soil particles together?" with the following options: - solid, liquid, gas - earthquakes - evaporative cooling - fissures of hot, acidic water - Evaporation of water - subthermal movements - flooding and erosion - freezing and thawing water
freezing and thawing water

Q: Fact 1: Animals can communicate with sounds, chemicals, or visual cues. Fact 2: Unlike animal communication, properly human communication is abstract and linguistic in nature. Given the two facts above, answer the question "how do humans communicate?" with the following options: - simply - electrically - sensory neurons - by indirect light - firm hugs - smell - linguistically - touch
A: linguistically

Question: Fact 1: Ejaculation occurs when muscle contractions propel sperm from the epididymes. Fact 2: An egg is fertilized by sperm. Given the two facts above, answer the question "When will an egg become fertilized?" with the following options: - After ejaculation - Fully cooking the oysters - allow growth - Earth orbiting the Sun - in the autumn season - colder and wetter - Plant reproduction - during the day
Answer: After ejaculation

*Question*
Fact 1: Carbon cycles quickly between organisms and the atmosphere. Fact 2: Carbon is an essential component of all living organisms. Given the two facts above, answer the question "What is essential to all living organisms?" with the following options: - garbage - Energy. - hydration - gifts - food and shelter - Chemical energy - poison - The atmosphere
**Answer**
The atmosphere

(Q).
Fact 1: Carbon may be stored in sedimentary rock for millions of years. Fact 2: Limestones are a common type of sedimentary rock. Given the two facts above, answer the question "What may be stored in limestone for millions of years?" with the following options: - dark matter - chemicals - still-living organisms - nothing - fossils - matter - carbon - Energy
(A).
carbon