however, roughly 500 days before the deadline, there is no doubt that the goals have had measurable and life-changing effects on billions of people: since 1990, half of the world’s extremely poor people have been lifted out of poverty, 2.1 billion people have gained access to clean water, the aids epidemic and malaria have been curbed, 90% of children in developing countries start school and just as many girls as boys.

How would the previous sentence be correctly capitalized?
Answer: However, roughly 500 days before the deadline, there is no doubt that the goals have had measurable and life-changing effects on billions of people: since 1990, half of the world’s extremely poor people have been lifted out of poverty, 2.1 billion people have gained access to clean water, the AIDS epidemic and malaria have been curbed, 90% of children in developing countries start school and just as many girls as boys.
7 and now, thus says the lord of hosts, the god of israel: why do you commit this great evil against your own souls, so that, among you, man and woman, child and infant would pass away from the midst of judah, and so that no remnant at all would be left behind of you?

How would the previous sentence be correctly capitalized?
Answer: 7 And now, thus says the Lord of hosts, the God of Israel: Why do you commit this great evil against your own souls, so that, among you, man and woman, child and infant would pass away from the midst of Judah, and so that no remnant at all would be left behind of you?
morning temperatures will be around 9 °c. during the day they will reach a maximum of 13 °c. low temperatures at night will be around 6°c. we have weak westerly winds.

How would the previous sentence be correctly capitalized?
Answer: Morning temperatures will be around 9 °C. During the day they will reach a maximum of 13 °C. Low temperatures at night will be around 6°C. We have weak westerly winds.
however, what really counts for a perfectly-cut lawn is the cutting gear.

How would the previous sentence be correctly capitalized?
Answer: However, what really counts for a perfectly-cut lawn is the cutting gear.