Environmental Science
A food web is

A set of interconnected food chains, illustrating the tropic relationships among species
The set of prey species that are consumed by animals in an ecosystem
The tropic (feeding) levels that can be observed in an ecosystem
Like a food chain

ANSWER DOWNLOAD EXAMIANS APP

Environmental Science
Frost forms when:

All of these
Water vapor changes into ice without first becoming a liquid.
The dew point is 32oF or below.
Objects on the ground cool below the dew point temperature.

ANSWER DOWNLOAD EXAMIANS APP