When the sun produces energy, it consumes hydrogen and produces

A radium

B helium

C nitrogen

OD chromium

The luminosity of a star changes throughout its life. For a star of 1Msun, rank the stages a. Red against just before the helium flash b. Horizontal branch c. On the main sequence d. Protostar at the end of the Hayashi tracke. White dwarf

What is a divergent boundary

Describe paricles' influence on Athens

María and her husband Jose have built a sandbox in the backyard for the kids. They want to allow the kids to complete the project by adding the sand.

How many high tides and low tides occur each day

What is the name of the European landmark?

Amish originate from the mennonities, the mennonites originate from

Which is not a major similarity or difference between freshwater and marine ecosystems? a. both support a large number of plants and animals adapted for aquatic living b.

10. Where are intermediate igneous rocks (andesite and diorite) most commonly found? a. mid-ocean ridges b. subduction zones c. transform faults

Convert 1inch to 126,720 to statement scale with units in miles