The correct answer is 4) They have ring systems.
Explanation:
Jovial planets are also known as Giant planets, they include Jupiter, Saturn, Uranus and Neptune, these planets are classified as Giant planets because they are massive although they are composed mainly of gas and light materials. Additionally, most of this planets have one or more moons and all of them have ring systems which are rings made of particles, dust, debris, ice and other materials that are placed around the planet and orbit it, although only the ring system of Saturn is visible and because of this it is the best known. Thus, the statement that describes Jovian planets is "They have ring systems".
All the options are correct.
If we look at the formula of prismoidal, we can see that it contains, three areas = area of faces at top and bottom and area of midway section
Thus it can be used to calculate the a) calculate surface area for cylindrical rings And b) estimate the surface area of edged non-prismoidal solids.
In the volume formula of prismoidal, the factor (depth/6) is multiplied by the three areas as mentioned above, this gives the volume of faces at top and bottom and midway section. Thus option C and D are also correct.
No.
The speed of sound in water depends on the temperature and pressure. As you go deeper, the pressure increases and the speed of sound increases.
Two ways in which the proximity to water has affected Western Europe's economy:
1) Proximity of water can lead to lack of food, which affects economy of the country in various ways.
2) It has wet cool summers and wet, mild winters, so for shelters and cloths, it affects economy by transportation, extra manufacture etc.
Hope this helps!
