Harweda cares for the bird and begins thinking about its comfort as well as his own.
Its simple.. cereal, salad,soup... the teacher wants you to have three common mixtures because the teacher wants to see if you know what things are mixtures in your life. Why i choose CSS/ Cereal,salad,soup because You can drain the milk or take out the cereal.. from cereal, and with a salad you can take out one of the things Ex. Carrot, tomato, chicken, cheese (very hard but you can do it) e.t.c. and soup because you can take out the veggies or meat or noodles.
I believe the biggest space mission of the twenty-first century will be a manned mission to Mars, and the colonization that follows. This is the stated goal of several nations, companies, and individuals, all with considerably deep pockets. This mission will not only be a huge leap forward in space exploration, it will usher in a new era in human history in which the human race is an interplanetary civilization, a natural milestone as humanity continues to progress and advance.
Significant challenges are many and overwhelming. In terms of getting to mars, we need efficient, powerful propulsion systems and a spaceship that can not only accommodate a full crew for a mission that would likely last years, but withstand the various hazards that a long trip through space and entrance into the Martian atmosphere will entail. In terms of colonization, significant challenges will include establishing efficient and frequent travel/transport between the planets, and in the longer term, the necessity to terraform the planet (make it more like Earth) so that humans can more easily live there.
<span>The human population is increasing, so the likelihood of a mass extinction is also increasing.
The human population is increasing, and historically, as human population has increased, species have gone extinct. As human population increases, and also destroy more habitats to pay for higher standards of living, the probability of mass extinction increases. </span>
The answers are photosynthesis, respiration, decomposition, natural rock weathering and fossil fuel combustion.
