Fact 1: Being exposed to wind can cause erosion of soil. Fact 2: West winds mean a land breeze. Given the two facts above, answer the question "What can cause erosion of soil?" with the following options: - ice - breezes - mines - rainfall - sun rays - moon light - rivers - flooding
breezes

Fact 1: Organisms cluster around hydrothermal vents in the ocean floor. Fact 2: Hydrothermal vents are powered by the heat of submarine volcanoes. Given the two facts above, answer the question "What clusters around the heat of submarine volcanoes?" with the following options: - ferns - organisms - vegetation - humans - emissions - Energy - insects - the sun
organisms

Q: Fact 1: Mechanical weathering is when rocks are broken down by mechanical means. Fact 2: Water is a mechanical weathering force. Given the two facts above, answer the question "What weathers rocks?" with the following options: - soil - streams - a delta - calcite - erosion - water - grass - the sun
A: water

Question: Fact 1: Earth 's magnetic patterns are used for finding locations by animals that migrate. Fact 2: Bird Migration and Isotopes Tracking animal migration is a difficult task. Given the two facts above, answer the question "What uses Earth 's magnetic patterns to find locations?" with the following options: - pigeons - cats - rats - elephants - Bats - salmon - birds - humans
Answer: birds

*Question*
Fact 1: Acactus stem is used for storing water. Fact 2: Water consists of H2O, etc. Given the two facts above, answer the question "A cactus stem stores what?" with the following options: - RNA - h2o - rain - h1n1 - co2 - H20 - O2 - copper
**Answer**
h2o

(Q).
Fact 1: Completing a circuit causes electricity to flow through that circuit. Fact 2: When electric current is flowing, power is produced. Given the two facts above, answer the question "Power is produced when what happens?" with the following options: - circuit is opened - circuit is broken - heating liquids - forest is destroyed - circuit is burned out - circuit is completed - heat energy - chemical reaction
(A).
circuit is completed