The charts below show reasons for travel and the main issues for the travelling public in the US in 2009.

The bar chart and pie chart give information about why US residents travelled and what travel problems they experienced in the year 2009.

It is clear that the principal reason why Americans travelled in 2009 was to commute to and from work.

In the same year, the primary concern of Americans, with regard to the trips they made, was the cost of travelling.

Looking more closely at the bar chart, we can see that 49% of the trips made by Americans in 2009 were for the purpose of commuting.

By contrast, only 6% of trips were visits to friends or relatives, and one in ten trips were for social or recreation reasons.

Shopping was cited as the reason for 16% of all travel, while unspecific personal reasons accounted for the remaining 19%.

According to the pie chart, price was the key consideration for 36% of American travellers.

Almost one in five people cited safety as their foremost travel concern, while aggressive driving and highway congestion were the main issues for 17% and 14% of the travelling public.

Finally, a total of 14% of those surveyed thought that access to public transport or space for pedestrians were the most important travel issues.

The diagram illustrates the stages in the life of the salmon, from birth to maturity.

It is clear that there are six main stages as the salmon develops from egg to mature adult.

We can also see that salmon spend time in three distinct locations during the cycle, moving from river to estuary to ocean and then back upstream.

Salmon begin their lives in rivers where the adult fish lay and incubate their eggs.

After emerging from eggs, the young salmon spend the next stage of their lives being reared in freshwater areas.

Then, at some point in their development, the fish swim downstream to river estuaries where rearing continues.

Following the estuary rearing period, the maturing salmon migrate to the ocean, where they eventually become fully grown adults.

Finally, the adult fish travel back upstream to spawning areas of rivers; here they reproduce and lay their eggs, and the life cycle begins anew.

The diagram shows the life cycle of a honey bee.

The diagram illustrates the various stages in the life of a honey bee.

We can see that the complete life cycle lasts between 34 and 36 days. It is also noticeable that there are five main stages in the development of the honey bee, from egg to mature adult insect.

The life cycle of the honey bee begins when the female adult lays an egg; the female typically lays one or two eggs every 3 days.

Between 9 and 10 days later, each egg hatches and the immature insect, or nymph, appears.

During the third stage of the life cycle, the nymph grows in size and sheds its skin three times.

This moulting first takes place 5 days after the egg hatches, then 7 days later, and again another 9 days later.

After a total of 30 to 31 days from the start of the cycle, the young adult honey bee emerges from its final moulting stage, and in the space of only 4 days it reaches full maturity.