Acactus stem is used for storing water, and h2O is the scientific name for water. Given these facts, what can a cactus stem store among the following options: - hydrogen - CO2 - h2o - H20 - O2 - liquid gold - thorns - rain
h2o

If an object in a fluid is more dense than that fluid then that object will sink in that fluid because of gravity, and normally ice floats, because it is less dense than water. Given these facts, what happens to ice in water among the following options: - it evaporates - it sinks - it floats. - it expands - they bend - Condensation - vaporization - kinetic energy
it floats.

Q: Chloroplasts contain the green pigment chlorophyll, and photosynthetic Pigments Photosynthetic Pigments Pigments are colorful compounds. Given these facts, what contains the green compound chlorophyll among the following options: - mitochondria - Most plants - vacuoles - color of leaves - cell walls - peachleaf willow - In their leaves - chloroplasts
A: chloroplasts

Question: Plants use unsaturated fatty acids to store energy, and among the unsaturated fatty acids are compounds with one, two or three double bonds. Given these facts, plants use what type of compounds to store energy among the following options: - thermal insulators - It helps them survive - during the day - spring, summer, autumn, winter - compounds with double bonds - hydrogen and oxygen - Something with exactly eight protons - it helps plants in growing
Answer: compounds with double bonds

*Question*
Freezing means changing from a liquid into a solid by reducing heat energy, and water freezes into ice when cooled. Given these facts, what turns from a liquid into a solid among the following options: - ice - heated water - kinetic energy - fossil fuels - solid, liquid, gas - Calcium carbonate - cooled water - superheated water
**Answer**
cooled water

(Q).
The digestive system breaks food into nutrients for the body, and the stomach is part of the digestive system. Given these facts, the stomach does what in the body among the following options: - decreases its bodily water - kills all germs - breaks food into nutrients - stores bile - heat is produced - extracts water from food - get chemical reactions started - cause people to become sick.
(A).
breaks food into nutrients