In his science class, Mr. Brown heats a small amount of iodine in a test tube. The iodine changes into a pink gas without changing into liquid. What is this process called? A.
condensation
B.
deposition
C.
evaporation
D.
melting
E.
sublimation

E.

sublimation

Explanation:

In his science class, Mr. Brown heats a small amount of iodine in a test tube. The iodine changes into a pink gas without changing into liquid. What is this process called?

A.

condensation

B.

deposition

C.

evaporation

D.

melting

E.

sublimation

When a substance sublimates it passes from a solid to a gas without first melting into a liquid.  In addition to iodine, both naphthalene (which makes moth balls) and carbon dioxide  (which makes dry ice) sublimate.

the leaf is an organ of a typical plant, and the main functions are to complete photosynthesis and allow the plant to exchange gas, just like how we have the respiratory system. leaves have the stomata, which collects maintains co2 and o2 levels. this is necessary for cell metabolism. the leaf also collects sunlight using chloroplasts. succinctly, leaves own a pivotal role in sustaining plant life.

b is the correct answer

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