The Indian Ocean separates them
Answer:
Layer C is the youngest
Explanation:
On the image we can see three layers that have deposited throughout time on top of each other, thus in the manner of superposition. The deeper the layer, the older it is, the closer to the top the layer is, the younger it is, so we have layer D as the oldest, then comes layer B, and the youngest of those three is the layer A. But we also have the layer C that is roughly vertical, and it doesn't seem to belong there. This layer cuts through the layers D and B and stops at the bottom of layer A. This layer is actually an intrusion. It is a magma that managed to rise from the mantle and penetrate through the layers, gradually cooling off afterward and creating intrusive igneous rocks. This layer is the youngest of them all, as it appeared, formed, as the last.
Answer:
A. 2:5
B. 4:13
C. 4:7
D. 50:11
Explanation:
To find a ratio in it’s simplest form, multiply the the fraction/decimal until you get a whole number and make sure that the ratio can’t be evenly reduced by dividing one number by the other.
Also, you marked this question as Geography instead of Math
Answer:
See explanation below:
Explanation:
Transit Photometry is the most widely-used and effective to date, it has been a method that measures the light curve of distant stars for periodic dips in brightness. These are the result of exoplanets passing or transiting in front of the star relative to the observer. It is currently the most effective and sensitive method for detecting extrasolar planets, particularly from an observatory in space. When combined with radial velocity data, a transit can also provide a good estimate of the planet's mass. This method detects distant planets by measuring the minute dimming of a star as an orbiting planet passes between it and the Earth.
The main reason direct detection of exoplanets is difficult is because most planets orbit planets orbit at small angular separations on the sky, this means a direct detection is only possible if the star's light can be suppressed or occulted such that the faint light from the planet can be detected.
Some planets are found via the wobble method, using both methods, combining mass and size, scientists can calculate the planet's density, an important step towards assessing its composition.