Which of the following statements about features on the sun is true
1. prominence's look dark in regular photographs.
2. solar flares form when prominence's connect.
3. the number of sun spots of the suns surface is always the same.
4. sunspots can greatly increase the solar wind.
plz me asap

Why is excretion necessary to maintain homeostasis?

The ancestors of plants that lived in water had plenty of water for the young. angiosperms are a group of land plants that evolved a reproductive trait for living on land. this trait protect young plants by allowing them to grow only when water is present and the conditions for healthy development are right. what trait most likely young angiosperms in this way?

What process decreases the salinity of ocean water? decreased precipitationdecreased melting of glaciersincreased evaporationincreased runoff from rivers