The answer to your question will be C. because they are very inexpensive and are readily available but they will eventually deplete because we use them faster than they can be produced we use what has been building up.
Answer: D
Explanation: It says that in the paragraph
The speed of sound really depends on the temperature and moisture in the air,
and the sound of the thunder doesn't necessarily travel straight from the lightning
to where you are. So we can't say exactly.
But if we use the nominal speed of 340 m/s, then 6 seconds means 2,040 meters,
or about 6,700 feet, or about 1.27 miles.
The percent of monkey globin amino acids are βidenticalto the human grouping is known as the percent character between the monkey and human globin sequences.The globins are a superfamily of heme-containing globular proteins, required in authoritative or potentially transporting oxygen. These proteins all join the globin crease, a progression of eight alpha-helical fragments.
Can be made out of ; sand, rocks or soil if the current is not expected to be rough.