If you wanted to follow the longest river and hike upstream, which direction would you head

Heyi am new to are you all americans? ( just want to know , i don't mean any offence ) ?

Which types of seismic waves travel through earths interior? select all that apply. a) l waves b) p waves c) s waves

Put these ecosystems in order of least biodiversity to most biodiversity 1. mediterranean forest 2. indonesian rain forest 3. arctic ocean