True. Biking or walking exercises the leg muscles more than riding in a car would.
Answer:
Prior to more stringent blood safety measures and more sensitive tests, HIV from infected blood donors made its way into blood products. From the late 1970s to the mid-1980s, about half of all people with hemophilia became infected with HIV after using contaminated blood products.
Answer:
I think you need to write the sentence a few times
What is the difference between formal and informal language?
Formal and informal language serve different purposes. The tone, the choice of words and the way the words are put together vary between the two styles. Formal language is less personal than informal language. It is used when writing for professional or academic purposes like university assignments. Formal language does not use colloquialisms, contractions or first person pronouns such as ‘I’ or ‘We’.
Informal language is more casual and spontaneous.
