Answer:
Compare spectra obtained before and during an eclipse
Explanation:
- The passage of a planet between the star and the earth id called as a transit.
- The compassion between the spectral variation obtained from the light emitted by the planet can be used to find the presence of the exoplanet.
- The transiting planet has an atmosphere as some of the light passes from the sun and reaches the earth from the atmosphere of the planet.
- The brightness goes on decreasing as the planet passes out in an eclipse phase.
Answer:
RIdge, trench, abyssal plain
Explanation:
Answer:
I am going with A.......
Explanation:
I mean, when all the railroads were built citys formed near them and im 87% sure it was the mid to late 1800s soo...... yeh
Answer: c. Oxygen, silicon, and aluminium
Explanation:
The common elements in the Earth's crust in order of decreasing abundance are as follows:
Oxygen: Oxygen is the most abundant element on earth's crust. It makes up 46.6%. It exists as compound of the silicate minerals. It is used for industrial, commercial and medical purposes.
Silicon: Silicon is the second most common and abundant element on the earth crust. It makes up the concentration of 27.7%. It combines with the minerals of silica to form the silicate minerals. It is used for the purpose of ceramics, cosmetics, glass and other products.
Aluminium: Aluminium is the third most common and abundant element on the earth crust. It makes up the concentration of 8.1%. The aluminum exists in the form of aluminium oxide, potassium aluminium sulfate and aluminium hydroxide. It is used for the purpose of manufacture of rockets, machinery and automobiles.
Answer:
They prefer to use children in their businesses because they do not need to be paid, they can do unlimited work without getting any money. They cannot decline the work that is given to them.
