Answer:
The highest high tides, and lowest low tides occur during a new/full moon.
Explanation:
This is also called spring tides where you have two extreme types of tides. These tides happen when the sun, moon, and earth line up.
Answer:
When looking north, you see stars appear to move in circles.
Explanation:
- The motion of stars in northern hemisphere shows the circular motion that follows the path around the Polaris.
- As it takes 24 hours to complete one full circle, so during a night less than 12 hour, we see only certain part of path i.e. stars moving in an arc.
- And if you're facing north, they are moving from west to east.
- So depending upon the time of observation the stars may take the path of an arc or the full circle.
Answer:
B. distance of the deposit from the source.
Explanation:
The grain size of sedimentary deposit can indicate the distance of the deposit from the source. This is because, when sediment is transported by water, the sediment becomes victim of abrasion. As abrasion occurs, the edges of the grains of deposit are reduced, eventually leading to a rounder shape. However, this process can vary based on the distance of the deposit, the method of transportation and the energy characteristics of the transportation medium.
A primary pollutant is an air pollutant emitted directly from a source.
A secondary pollutant is not directly emitted as such, but forms when other pollutants (primary pollutants) react in the atmosphere.
Examples of a secondary pollutant include ozone, which is formed when hydrocarbons (HC) and nitrogen oxides (NOx) combine in the presence of sunlight; NO2, which is formed as NO combines with oxygen in the air; and <em><u>acid rain</u></em>, which is formed when sulfur dioxide or nitrogen oxides react with water.
Hope this helps:)
The correct answer is - deforestation.
Deforestation is a huge issue when it comes to soil erosion. When there's thicker vegetation the soil is in place and the erosion is minimal. This is due to the root systems of the trees, bushes, grashes, that are making a natural net inside the soil that holds it in place and doesn't allow the soil to be moved away and thus erosion to take place. But when we have a deforested landscape than the situation is the total opposite. The soil is left on its own and it doesn't have any protection from the root systems to keep in place, so with every rain it is eroding slowly and occasionally quickly when there's heavy rainfall. Most of the erosion takes place on the steeper parts.
