Identify the skin type that appears dull and lacks oil, and the skin color that shows delayed signs of aging.

Here are the answers to your questions:

Question 1:
Which of the following skin type can be recognized by its dull appearance and lack of oil?

• Dry skin lacks sufficient natural oils (sebum), leading to a dull, tight, and sometimes flaky appearance.

The correct option is B.
$\boxed{\text{Dry}}$

Question 2:
Which of the following skin colors tends to have delayed signs of ageing?

• Skin with higher melanin content, such as Black skin, offers more natural protection against UV radiation. This protection helps to delay the appearance of common signs of aging like wrinkles and sunspots compared to lighter skin tones.

The correct option is B.
$\boxed{\text{Black}}$