1.
largest planet in the solar system
2.
Dwarf planet with two moons
3.
planet with the biggest rings
4.
hottest planet in the solar system
5.
third planet from the Sun, the densest planet in the Solar System, the largest of the Solar System's four terrestrial planets, and the only planet in our solar system known to support life.
6.
branch of biology that deal with the study of plants, including their structure, properties, and biochemical processes.
7.
state of the atmosphere at a particular place during a short period of time. It involves such atmospheric phenomena as temperature, humidity, precipitation (type and amount), air pressure, wind, and cloud cover.
9.
narrow zone on the surface of the earth where soil, water, and air combine to sustain life. Life can only occur in this zone.
10.
the complex of living organisms, their physical environment, and all their interrelationships in a particular unit of space.
14.
lowest region of the atmosphere, bounded by the Earth beneath and the stratosphere above, with its upper boundary being the tropopause, about 10–18 km (6–11 miles) above the Earth’s surface. Most of the clouds and weather systems are contained within the
15.
flow of atomic and subatomic particles and of waves, such as those that characterize heat rays, light rays, and X rays. All matter is constantly bombarded with radiation of both types from cosmic and terrestrial sources
