Changes in the pH of soil can cause plants to die, and compost balances the pH of soil. Given these facts, how do you balance the acidity of soil among the following options: - Evaporation - It decreases - composting - heating liquids - food - pruning - drink - dirt
composting

(Question)
High pressure systems cause clear weather, and sailplanes fly in clear weather. Given these facts, what do high pressure systems allow among the following options: - water conservation - Veins and arteries. - hydrogen and oxygen - Animal survival - to move people - heat energy - heating liquids - sailplanes to fly
(Answer)
sailplanes to fly

Ques: An electron microscope is used for seeing very small objects by making them appear bigger, and electron microscopes allow scientists to magnify objects hundreds of thousands of times. Given these facts, magnifying objects hundreds of thousands of times is used for seeing what among the following options: - electromagnetic energy - movement of tectonic plates - rays or beams - tiny expanded things - Light passing through water - very magnetic objects - very small objects - very big objects
Ans: very small objects

(Q).
Plants use cellulose for their cell walls, and if the plant is green, it is a producer. Given these facts, what kind of organism use cellulose for their cell walls among the following options: - parasites - animals - Conifers - fungus - vegetation - producers - amoeba - viruses
(A).
producers

Ques:Vinegar can cause harm to the eyes, and it is this bacteria which turns alcohol into acetic acid, the main component of vinegar. Given these facts, what can cause harm to the eyes among the following options: - hypothyroidism - acetic acid - juice - water - Pesticides - heating liquids - light - rays or beams

Ans:acetic acid

Crumple means change shape from smooth into compacted by physical force, and density increases with depth due to compaction and progressive cementation. Given these facts, crumple means_ increases by physical force. among the following options: - threatened - mass - an object - density - movement - weight - volume - It expands
density