Answer:
Yes, there are certain planet that are not detected even if they are large.
Explanation:
- The Doppler method is the radial-velocity method, and also an indirect method finding the extra solar planets and the brown dwarfs. While the transit method is a phenomenon only the celestial bodies are directly between a large body and an observer body.
- However, the transit method of the transiting planet is low as it depends on the alignment of the three objects that are in a near perfect straight line patterns. And that of the Doppler method that it can only measure movements along that line of sight, and this depends on the estimates of inclination of the planet's orbit to determine its mass.
- <u>Thus of a planet is found by both these methods we can find its density, and an indication of its composition.</u>
Answer:
<u>True. cover 71% of the entire earth</u>.
Explanation:
- The oceanic mass found ver the earth is well-known mass reserves of 97.3% of all waters in the world. Most Of it exists in salty forms and rest 3% is in the form of lakes and glaciated bodies as the next big reservoirs.
- They are also considered as the carbon sinks, constantly absorbing the carbon dioxide gas, the Atlantic Ocean covers an area of 82.4 km square with a volume of 323.6, followed by the Pacific Ocean, with 165.2 km area and a volume of 707.6, and the Indian Ocean has an area of 73.4 km and volume of 291.0 km cube.
- Variability is an important component of the oceanic water there is also water in the earth's mantle and is available at a temperature of 1,100 degrees celsius.
Answer:
a volcanic mountain is formed by the oceanic plate going under the continental plate causing the formations of trenches and mountains, the friction caused by the oceanic plate sliding under the continental plate makes enough heat for it to become volcanic.
Explanation:
many fossils can be preserved in the ice. as well as radiation levels. oxygen levels. carbon dioxide levels. and many more to determine the climate of the past.
<u>Answer:</u>
<em>A. Mantle convection
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<u>Explanation:</u>
Ridges are formed over the divergent plate boundaries, it can be pushed by the mantle plume volcanism originated by the core mantle boundary at the Asthenosphere region over the divergent plate boundary. Seafloor spreading is the one of the evidences of plate tectonics theory. Subduction of the plate is the result of ridge push and slab pull, oceanic plate is less dense so its under beneath the high denser continental plate.
