According to dutch scientist christiaan huygens, what was light made of

As a small change in a person's dna can cause a genetic disorder

As an asteroid comes close to earth, it's name will change to? apex

The serengeti plains are part of the african savanna ecosystem and are home to a variety of different species of plants and animals. the serengeti plains experience a seven-month period of seasonal drought each year, during which the ecosystem receives only four inches of rain and the availability of some resources becomes very scarce. which type of limiting factors does the seasonal drought in the serengeti plains affect?