Which statement describes the area swept out by a line between a planet and the sun at equal times as the planet moves along its orbit? It changes shape but always remains constant. It is proportional to the distance between the sun and the planet. It increases as the planet moves closer to the sun. It decreases as the planet moves closer to the sun.
can you restate the question but rephrased and more details about the question or is that all you have
we must study the sun as it is a source of energy and we need to understand stars in general. our planet orbits the sun and we want to learn about how our planet works
challenges they may face could be heat, and difficulty to get an object to the sun.
excretion is the removal of material from one living thing, for example. humans excrete tears, sweat, carbon dioxide etc.
secretion is the movement of material from one point to another, for example. humans secrete enzymes, hormones, saliva etc.
basically in summary excretion is the removal of physical material and secretion is the movement of biological materials from one point to another.
i hope this was clear enough lol