When you breathe in, you take in oxygen from the air, which is lighter than the other components present in the air. When you breathe out, you release carbon dioxide and other waste products from your body, which are heavier than the oxygen you took in. This difference in composition between the inhaled and exhaled air make the exhaled air slightly heavier.

The past tense of vacuum is vacuumed.

"They have free- fallen"

"They free-fell"

The past participle of "glow" is "glowed." For example, "The fire glowed brightly in the darkness."

The past tense of "x-ray" is spelled as "x-rayed."

The past tense of "glow" is "glowed."

The past participle is sped.

The past participle of "light" is "lit" or "lighted." Both are acceptable forms.

Lightning can be used as a noun (bolt of lightning) or an adjective (lightning fast). It is not a verb, so it does not have a past tense form.

When you exhale, the air has been warmed by your body during the breathing process. As you breathe in air, it first enters your nasal cavity, where it is humidified and warmed to body temperature. This warmed air then moves to your lungs for gas exchange, and when you exhale, that warmth is transferred to the exhaled air.

The past participle of "wind" is "wound."

The past tense of "wave" is "waved."

Boiling a KMnO4 solution helps to remove any impurities or organic material that may be present. This ensures the solution is more stable and accurate for future use. Boiling also helps to sterilize the solution, reducing the risk of contamination.

The correct name for the N3- ion is nitride ion. It is a negatively charged ion with a -3 charge that is formed by gaining three electrons.

An ebony void refers to a profound emptiness or darkness, often used metaphorically to describe feelings of emptiness, nothingness, or despair. It can symbolize a sense of loss, loneliness, or hopelessness.

Weight is a noun not a verb. Weigh, however, is a verb, and its past tense is weighed.

Alkenes are commonly found in petroleum and natural gas deposits. They are also present in various plant oils and fats. Additionally, alkenes can be synthesized in a laboratory setting through various chemical reactions.

Filtration should be used in various industries and applications such as water treatment, air purification, pharmaceutical manufacturing, food and beverage processing, and automotive engines. It is also important in maintaining clean indoor air, controlling pollutants, and ensuring the quality of products.

"Breeze" is a noun. Nouns don't have tense. "The breeze blew lightly yesterday."

The present tense of "shaken" is "shake."

The job of breathing is to bring oxygen into the body and remove carbon dioxide from the body. Oxygen is needed for cells to produce energy through a process called respiration, and carbon dioxide is a waste product that needs to be expelled.

It is unlikely that the front fork assembly from a 1985 Honda 200X ATC will fit directly onto a 1984 Honda 110 ATC. ATC models have different frame dimensions and component designs across model years, leading to variations in mounting points and compatibility. It is recommended to find a front fork assembly specifically designed for the 1984 Honda 110 ATC for proper fit and function.

A glean is to gather or collect information or material bit by bit, typically in a gradual or indirect way. It can also refer to obtaining leftover crops from fields after they have been harvested.

The past tense of "wind" as in to twist or turn something is "wound."