I think the correct answer from the choices listed above is the first option. The statement that best describes the state of metals when they are at room temperature would be that most <span>nonmetals are gaseous, but some are liquid or solid. Hope this answers the question. Have a nice day.</span>
Tectonics is a science that studies tectonic plates. Earth's surface is made of many tectonic plates which move relative to each other. This movement causes earthquakes and can lead to forming a mountain or change in environment.
To determine if Moon has tectonic plates scientists observed Moon's surface for a long time. They were searching for a change in height of a mountins or any changes in surface. If they found this it would mean that Moon has tectonic plates just the Earth does. Only changes they observed were those created by meteorites.
Definitive confirmation that Moon does not have tectonic plates came when people landed on it. Scientific equipment they brought and later the rover that were sent confirmed there are no moonquakes and this led to a conclusion that there are no tectonic plates.
The choices can be found elsewhere and as follows:
<span>a.
copper alloy or bronze casting were first used in Sub Saharan Africa.
b.
Islam became an economic and religious force in West and North Africa.
c.
that abstract thought in humans occurred much earlier than once thought.
d.
the French colonies were taken over before the third or fourth centuries.
I think the correct answer is option C. </span>The discovery of the Blombos cave suggests that abstract thought in humans occurred much earlier than once thought.
Answer:
Because it is the result of two more fundamental units, a derived unit is termed that. For volume, the cubic meter (m³) is the fundamental unit of area. Any number that cannot be measured directly with any equipment is referred to as a derived unit. For example, we can't quantify a substance's density using a rule, scale, or bucket.
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light and radiation is able to experience by an observer watching the explosion from the vacuum.
<u>Explanation:</u>
- Basically in the nuclear explosion, there will be an enormous of energy released as noise, heat, visible light, radiation and atmospheric wave.
- Usually sound and wave propagate through medium but in vacuum, there will be no medium to transfer this type of energy. so there is no chance of sound and wave transfer.
- Light and radiation travel in vacuum because they didn't need the medium to transfer .