Scientists estimate that the Sun formed from a nebula with 71.1% hydrogen and 27.4% helium. Current measurements of the outermost layer of the Sun, the photosphere, indicate that this layer is made up of 74.9% hydrogen and 23.8% helium. However,

the core of the Sun contains about 38% hydrogen and 60% helium.

Which conclusion about the Sun is best supported by this information?

Food provides molecules that serve as fuel and building material for all organisms. plants undergo photosynthesis and make their own food. other organisms, like us and the horse seen above, are consumers and eat food. how do all organisms use food as fuel? be sure to include the name of the process in your answer. me.

Asap timed! 1. ice core samples from glaciers ice caps contain bubbles of ancient atmosphere that are in layers based on age. what questions are scientists most interested in? a. how the amount of water vapor needed to make the ice has changed b. how the amount of ozone has changed over time.c. how the amount of ice in each layer has changed over time d. how the amount of carbon dioxide has changed over time 2. what produces milankovich cycles ? a. sunspots ams solar flare on the suns surface b. changes in the earths orbit c. gravitational changes bases on the position of the sun and the moond. cycles of vegetation that result in desert and rainforest conditions

Which of the following cell structures is significantly different between gram- positive and gram-negative bacteria?