If a star has a parallax of 0.02 seconds of arc, then its distance is   a. 20 pc.   b. 50 pc.   c. 2 pc.   d. 5 pc.   e. 500 pc.

Q: Using the shown Visual Overview as your guide, evaluate the various methods of correlating rocks wit...

A: Correlation is the process of determining mutual relationships. It helps to compare the age of rocks...

Q: Describe four different coastal ecosystems.

A: The coastal ecosystem occurs in coastal areas in which it is a meeting place of land and sea. The co...

Q: Draw a cross section through an active mid-ocean ridge. Where are the hydrothermal vents located? Wh...

A: Earth is a terrestrial planet, meaning it has a rocky surface primarily made up of silicate rocks an...

Q: We know that giant stars are larger in diameter than the sun because   a. they are more luminous...

A:   A giant star is a star with considerably bigger span and glow than a fundamental succession (or sm...

Q: Which of the following soil actions contributes to overall net losses of organic matter (and therefo...

A: Loss of natural matter additionally happens on the grounds that disintegration washes away dirt and ...

Q: 5. What is the rate of movement along the fault in the past 10,000 years? This can be determined by ...

A: fault are structures which has discontinuity or fracture along a rock mass where a movement have tak...

Q: Which type of rock forms 75% of the Earth's surface? A. Igneous rock B. Sedimentary rock O C. Metamo...

A: Rocks are naturally occurring aggregates of minerals. The Earth's surface is made up of different ty...

Q: Why does the present day stream valley bend sharply at the San Andreas Fault?

A: We know that the san andreas fault is an active strike slip fault located at the western coast of Ca...

Q: Which of the following best obey the mass-luminosity relation?   a. main-sequence stars   b. ...

A: Mass-luminosity relation is the relationship between mass and luminosity of stars.

Q: Thinking Analytically What would be the approximate age of a seamount produced at the East-Pacific R...

A: The distance between point 6 and the peru-chile trench is about 3500 kilometers. 1kilometer = 1000 m...

Q: Ecosystem change driven by Geologic Factors: Example: what is Continental Drift?

A: Ecosystem- Ecosystem is one of the highest levels in the ecological hierarchy of the biosphere. The ...

Q: Best Climate type for Frost Wedging, Clay Formation, and Dissolving.

A: Weathering is a natural process f Insitu physical degradation and chemical disintegration of rock. C...

Q: Follow Directions of the image

A: Grassland soil is very rich in nutrients. The main cause of its high fertility is that it is rich in...

Q: 3. Which is NOT true of fossils? a. They indicate that life has a history. b. They are evidences of ...

A: Fossils are the main source of history of ancient. They are used to construct the history.