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Probably tree pollen. Many species of trees produce copious quantities of airborne pollen.

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16y ago

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What is the color of the powder left behind when a mineral is scratched?

The color of the powder left behind when a mineral is scratched is known as the mineral's streak color. It can sometimes be different from the color of the mineral itself, based on the mineral's chemical composition.


What is the yellow powder that gives a pungent smell when left open in air?

The yellow powder you are referring to is likely sulfur. Sulfur is a naturally occurring element that can be found in various forms, including a yellow powder. When sulfur is exposed to air, it can react with oxygen to form sulfur dioxide, which has a pungent smell often described as similar to rotten eggs. This reaction is a common occurrence with sulfur-containing compounds and is responsible for the characteristic odor associated with them.


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Roundup should be left on for at least 30 minutes before it rains to ensure it has time to dry and be absorbed by the plants.


What happens when bleaching powder left exposed to air?

When bleaching powder is left exposed to air, it can react with moisture in the air to release chlorine gas. This can cause irritation to the respiratory system and eyes. It can also lose its effectiveness over time if not stored properly in a sealed container.


What can be substituted for onion powder?

It can be left out or you can use garlic powder.


On your sims agents what is the code for the frogs?

it is yellow on the right, yellow on the right green on the left, green blue on the right ,green on the left ,yellow on the right ,yellow on the right ,top orange on the left ,red on the right ,red on the right ,top orange on the left, yellow on the right, top orange on the left, top orange on the left


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When mixing powder paint and water then boiling that water what is left behind?

The residue is the paint powder.


Is the gun powder on the right or left side?

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What is the difference between 'meal powder' and 'gun powder'?

Meal powder is the fine dust left over when black powder (gunpowder) is corned and screened to separate it into different grain sizes. It is gun powder dust.


What evidence is left of the occupants of the house in there will come soft rains?

Their silhouettes are burned into the side of the building.


What characteristic is used to determine the color of a mineral's powder?

The characteristic used to determine the color of a mineral's powder is known as its "streak color." This is achieved by scratching the mineral against an unglazed porcelain plate to observe the color of the powdered residue left behind. Streak color can sometimes differ from the visible color of the mineral.

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