The Earth has natural and artificial sources of water. Every human being should conserve and preserve their surroundings to avoid adulterating water bodies.

Researchers know that early people made simple tools from stones as early as 3.3 million years ago. The new discovery, published Wednesday in Nature, reveals that ancient humans “had rather more ...

The proximity to these resources suggests that access to naturally ... for a considerable period before early humans made their own stone tools, they initially used and relied on naturally sharp ...

The new hypothesis proposes that for a substantial amount of time, before early humans made their own stone tools ... occur near naturally occurring sources of stone. "A hominin could have ...

The agency hasn't released six of the 10 chapters that constitute the sprawling inventory of U.S. climate pollution sources.