1. Kepler's 1st law: law of ellipses: - <span>D. The orbit of planets is not circular but elliptical.
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2. Kepler's 2nd law: law of equal areas: - </span><span>B. An imaginary line joining a planet to the Sun sweeps out equal areas in equal amounts of time.
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3. Kepler's 3rd law: harmonic law: - </span><span>Planets closer to the Sun orbit it in a shorter time period than planets further from the Sun.
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4. Newton's 1st law of motion: - </span><span>Stationary objects resist movement, and moving objects resist stopping.
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5. Newton's 2nd law of motion: - </span><span>Acceleration of an object depends on its mass and applied force.
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6. Newton's 3rd law of motion: - </span><span>For every action, there is an equal and opposite reaction
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7. Newton's law of universal gravitation: - <span>The greater the mass, the stronger the gravitational force.The greater the distance, the weaker the gravitational force
Hope this helps!</span>
75% species go extinct to be considered a mass extinction
Producers absorb the energy from the sun and the energy gets transferred via consumption in this order producers ->primary consumers -> secondary consumers -> tertiary consumers
Answer:
Option D
Explanation:
Complete question
which of the following properties of water are essential for life on Earth?
A) polarity
B) Cohesion & Adhesion
C) High heat capacity
D) All the above
Solution
Some essential properties of water are as follows –
a) Polarity
b) Solvent
c) High heat capacity - it is essential to maintain the temperature on earth. The water bodies are comparatively cooler than the temperature of earth
d) High heat of vaporization
e) Cohesion – It is essential for surface tension & capillary action
f) Adhesion – It is essential for surface tension & capillary action
g) Lower freezing density – Due to this reason, ice is lighter than water
Hence, option D is correct
