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Degger [83]
3 years ago
15

Which of the following are characteristics of heterogeneous mixtures?

Physics
1 answer:
ollegr [7]3 years ago
7 0
The two substances are not mixed on the molecular level and can be separated
Ex.salt and pepper,twix,and choclate chip cookies
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In space movies, spacecrafts explode and oxygen is needed for a fire to start. Why is it wrong? What would really happen?
Triss [41]

Answer:

Hey

The reason these "space movies" are wrong is because objects in "space" (not in a "space" craft) can't catch on fire because there is no air in "space".

6 0
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What is the most significant challenge for organisms that live in estuaries?
marysya [2.9K]

"Changing water salinity" is the most significant challenge for organisms that live in estuaries.

<u>Answer:</u> Option D

<u>Explanation:</u>

For estuaries, alkalinity levels are usually the maximum at a river's mouth where the ocean water falls for, and the minimum upstream where freshwater falls in. Although salinity vary throughout the tidal cycle. In estuaries, salinity rates usually decrease in spring as snow melt and rain raises the freshwater flow from streams and groundwater.

It influences the chemical environments within the estuary, especially the dissolved oxygen (DO) levels in the water. The level of oxygen that would get dissolved in water or its solubility get declined when the alkalinity rises.

8 0
3 years ago
A minimum temperature thermometer in a standard weather instrument shelter measures an overnight low temperature of 36 degrees F
Rudiy27

Answer:

Explanation:

Even though the minimum temperature is more than the freezing point, Frost was observed on the ground because the ground will cool rapidly as cool air tends to move towards the ground, the temperature of the ground is lower than the atmosphere a few feet above it.

As the thermometer is kept some feet above the ground so ground temperature may be lower than the minimum recorded temperature.

5 0
3 years ago
A testing instrument that's used to measure electrical signals in a circuit and display them as waveforms on a screen is called
disa [49]
A testing instrument that's used to measure electrical signals
in a circuit and display them as waveforms on a screen is called
an oscilloscope.

8 0
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What kind of energy does an unlit match have?
Oliga [24]

The type of energy that an unlit match has is potential energy.

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