Why are some sedimentary rocks hard and others soft?

A mineral is naturally formed in?

How do I give a brainliest?

The majority of atmospheric mercury is produced by

14.) Which stage of the demographic transition model is declining fertility and low mortality, which shows high growth that is declining? a.) Stage 3 b.) Stage 1 c.) Stage 4 d.) Stage 2

We have sent several spacecraft on trajectories that will ultimately take them into interstellar space (Pioneer 10 and 11, Voyager 1 and 2, New Horizons). How long will it take these spacecraft to travel as far as the nearest stars?

Where is mircoasia in the world

The three main subdivisions of religion are polytheism, pantheism, and animism. A. True B. false

What are some countries bordering the pacific ocean?

Is the new crust being formed denser than the older crust?

Approximately how many more mammal species become extinct in the period 1901-2000 than became extinct in the period 1801-1900?