Acar that runs on corn ethanol will emit
mmt of co2 each year.

2.256

Explanation:

This is a percent change problem. The CO2 emitted by a car using gas is 4.7 MMt per year. The CO2 emitted by a car using corn ethanol made from biomass is 52% less than 4.7 MMt.

Find 52% of 4.7 MMt:

0.52 × 4.7 = 2.444.

Subtract 2.444 MMt from 4.7 MMt:

4.7 − 2.444 = 2.256.

The solution is 2.256 MMt.

Explanation:

This is a percent change problem. The CO2 emitted by a car using gas is 4.7 MMt per year. The CO2 emitted by a car using corn ethanol made from biomass is 52% less than 4.7 MMt.

Find 52% of 4.7 MMt:

0.52 × 4.7 = 2.444.

Subtract 2.444 MMt from 4.7 MMt:

4.7 − 2.444 = 2.256.

The solution is 2.256 MMt.

many phylogenetic trees have a single lineage at the base representing a common ancestor. a lineage that evolved early from the root and remains unbranched is called basal taxon. when two lineages stem from the same branch point, they are called sister taxa.

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explanation: