Answer:
Sound is a type of energy made by vibrations. When any object vibrates, it causes movement in the air particles. These particles bump into the particles close to them, which makes them vibrate too, causing them to bump into more air particles. This movement, called sound waves, keeps going until they run out of energy.
Chloroplast is the organelle and Chlorophyll is the thing that makes it green.
Vacuole is larger in the plant cell
An activity that me, my family or friends engage in that causes pollution is the use of vehicles that run on fossil fuels for transportation.
<u>Explanation:</u>
Fossil fuels contribute to pollution in a large way. Burning of fossil fuels release gases like carbon dioxide, carbon monoxide, oxides of sulphur, nitrogen etc which accelerate pollution. Petrol and diesel are the common fossil fuels used in vehicles.
Easy transportation is the necessity that makes people chose this alternative. There are other alternatives to fossil fuels. Vehicles can use cleaner fuels like CNG and LPG.
The vehicles can also be powered by electricity. But switching to these alternatives has some limitations as well which makes people find it difficult some times. It would never be a simple matter to sop this activity considering how important fast transportation is in this era.
Answer/Explanation:
Most of the mass is contained in the nucleus
The atom can be divided into two main regions, the nucleus. and the electron clouds. The nucleus is home to neutrons and protons, which are the heavier subatomic particles. The mass of an atom, the atomic mass, is the sum of the number of neutrons and protons contained within the atom. The electron cloud is the region where the electrons of the atom are found.
