A stalactite and a stalagmite are the two cave formations that join to form a column. The correct option among all the options that are given in the question is the third option or option "c". Speleothems are considered as the most common type of stalactite. I hope the answer helps you.
Answer:
b) point B
Explanation:
The point B would have the youngest rocks at the rift zone. The reason for that is that point B is located right on the place where the new crust is formed. That is the place of separation of the tectonic plates. The magma rises from the astenosphere and reaches the surface. As it does, it cools off and creates new rocks, thus new crust, right where the point B is. The continuous pilling up of new crust at the divergent boundary also results in pushing away the older crust, thus we will always have a situation where the youngest rocks are located right where the fault is.
Treelike ferns first began to grow and populate
The Answer is A. Cuba is located at #1.
Answer:
Automobiles release hydrocarbons that react to form pollutants in dry air.
Explanation:
- As carbon from the gasoline mixes with the air it reacts and starts to burn and this burning of hydrocarbon in the air produces heat, smoke, and gases, as well as chemical byproduct like water and carbon particulate matter.
- 22.38% of CO2 is produced by burning one gallon of petroleum. So, for the hydrocarbon to get successfully converted into carbon dioxide and produce carbon monoxide in the air it needs to react and burn, and CO is the result of not a sufficient amount of O2 in the air.
- Various automobiles release the nitrogen sulfur into the air and soil and give sooty dust and particle sizes that can change the composition of the further atmospheric cycle.
- As earth air is composed of <u>78% nitrogen, 21% oxygen, 0.9% argon, and 0.03% carbon dioxide</u>. The more gases that are released more spread the pollutant content of the air.