Answer: Weather balloons are special balloons that have a weather pack on them that measures air pressure, temperature, wind speed
Explanation: Meteorologists are able to predict the changes in weather patterns by using several different tools And the weather ballon has that weather pack that measures air pressure temparature and wind speed and that can predict future weather conditions.
Answer:
When an impulse reaches the muscle fibres of a motor unit, it stimulates a reaction in each sarcomere between the actin and myosin filaments. This reaction results in the start of a contraction and the sliding filament theory.
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Answer:
The androecium is the male reproductive participant in pollen production for virtually every type of flower. Learn the definition and the concept of the androecium and its various components, including two types of stamens called the filament and anther.
Explanation:
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Answer:
1/ Climate change
2/ Asteroid impacts
3/ Massive volcanic eruptions
4/ Sun explodes
etc. (all the things above are most likely to happen but alien invasion or things like that is also a theory that you can add depends mostly if you like it or not)
C
dissolving salt is a chemical change