Which evidence supports the claim that Earth’s continents formed during Precambrian time? Compaction caused rock to cool and rise to form pieces of crust.
Earth collided with a large object and threw material onto Earth’s surface.
Collisions with comets added land masses to Earth’s surface.
Earth’s surface cooled, causing rocks to cool and harden.

explanation:

the sequence of amino acids in a protein determines its function. the dna sequence of a gene determines the amino acid sequence of the resulting protein. thus, any changes in dna sequence can result in changes in protein function. this is called a mutation.

air, water, heat and noise pollution can all be caused by producing and using technology. consuming resources - non-renewable resources, including precious metals like gold, are used to make technology