Greenhouse effect is advantageous as well as disadvantageous. Why?

This is not a Spanish question but ok! The greenhouse gases help block the harmful solar radiation from reaching planet's surface. These gases work like a filter and bounce back most of the unwanted and damaging energy into space. Ozone, which is one of the crucial greenhouse gases, absorbs the harmful ultra-violet (UV) rays of the sun.

Explanation:

ummmthings that are different in peru than in the united states:

1. granola bars: they are not made of granola. they are made of quinoa and other grains that remind me of the millet i feed my birds at home. they have the texture of styrofoam but are cheap and comparatively healthy.