There are four basic Vedic texts in use by Hindus.

Give a brief description of each, including how many hymns are in each.

Do some independent research, and in your own words describe the
practice of indulgences.
Why do you think Martin Luther objected to indulgences?
Please note where your research led you.

The Islamic pilgrimage to Mecca is called the Hajj.
Describe the details of the Hajj, and include a photo or video of a Hajj in your blog.

4 basic Vedic's are:

1. Rigveda: It is a collection of 1,028 hymns. Begins with a small book addressed to Agni, Indra, Soma and other gods. In each section the hymns progress from longer to shorter ones. But the number of hymns per book increase.
2. Samaveda: Consists of 1,549 stanzas taken almost entirely from the Rigveda. Has two major parts. The first part includes four melody collections. The second part includes 3 verse "books".
3. Yajurveda- Consists of 1,875 verses that built around the verses of Rigveda. Is the primary source of information about sacrifices during Vedic times and associated rituals.
4. Atharvaveda- consists of 760 hymns and about 160 of them are in common with the Rigveda. Is the " knowledge storehouse of atharvanas, the procedure for everyday life".

Indulgences: Where a punishment is canceled or taken away from the person

Martin Luther felt that it was wrong to promise that souls would be relieved from purgatory based on a simple monetary contribution. He also felt pope did not have the right to grant a pardon from God.

Website- https://www.reference.com/world-view/did-martin-luther-object-selling-indulgences-a82b99b885c07874

Hajj- Is an annual Islamic pilgrimage to Mecca, Saudi Arabia, the holiest city for Muslims, and a mandatory religious duty for Muslims that must be carried out a least once in their lifetime.

Video for Hajj- https://video.nationalgeographic.com/video/00000144-0a40-d3cb-a96c-7b4dd49c0000