How does crossing over create new gene combinations on each chromosome

Crossing-over is the exchange of genetic material between homologous chromosomes. It results in new combinations of genes on each chromosome. When cells divide during meiosis, homologous chromosomes are randomly distributed to daughter cells, and different chromosomes segregate independently of each other.

rising sea temps which are causing coral reefs to bleach and die out

glaciers are melting causing sea levels to rise wgich could flood out land

explanation:

the  frequency of a wave represents  the number of wavelengths that pass a specific point per second. the unit for  frequency  is hertz (hz).

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