II and III only. The Cambrian Period is the first geological time period of the Paleozoic Era. And the longest unit in geological time is the supereon.
Nuclear weapons-15 million K
In radiation, we don't need medium to conduct heat or energy but in conduction we need medium to conduct energy or heat ! conduction is done by contact as in radiation there is no contact !
for example or any info, comment !
Answer:
A is the answer i think because it has more reef