What is the meaning of the solar constant?Group of answer choicesthe amount of energy the earth receives per unit area and unit timethe regularity of the 11 year sunspot cyclethe stability of the Sun's luminosity for as long as life has existed on Earththe fact that features on the Sun appear to never changethe fact that the amount of hydrogen turning into helium in the core is fixed

The amount of energy received in unit time on a unit area perpendicular to the sun’s direction at the mean distance of the earth from the sun is called ________. Solar radiation Solar constant Intensity of solar radiation Air Mass

Choose all the correct statements about the solar cycleGroup of answer choicesThe number of sunspots is maximum every 11 yearsThe disruption of the electrical power grid and communication satellites due to solar streams of charged particles are more likely to occur during solar maxima. Solar cycle is driven by the solar magnetism

List at least two ways that the Sun's energy is used on Earth.

What is the luminosity of our Sun?312

________________ is when the energy from the sun heats up different areas on Earth's surface at different rates and to different degrees.